ToolsKit

Explore useful tools and resources

A categorized directory of third-party tools and websites. Each entry links to the resource's own website; these are external services, not ToolsKit utilities.

AI Tools & Services

AI assistants, model hubs, generators, local-model tooling and AI utilities.

  • Arena — Public leaderboard that ranks AI models from head-to-head human votes.
  • Artificial Analysis — Independent comparisons of AI models by quality, speed and price.
  • FutureTools — Directory for discovering AI tools by task.
  • Google Labs — Google's showcase of experimental AI products and demos.
  • Kaggle Benchmarks — Kaggle's benchmarks and leaderboards for comparing AI models.
  • LLM Explorer — Searchable catalogue of language models with sizes and specifications.
  • Open VLM Leaderboard — Leaderboard aggregating benchmark scores for vision-language models.
  • SWEBench — Benchmark and leaderboard that tests AI models on real GitHub software-engineering tasks.
  • AIVA — AI music composition assistant that generates tracks in many styles and lets users edit them and download MP3, MIDI or WAV files.
  • Descript — Audio and video editor where you edit media by changing its transcript, with AI tools for filler removal, captions and dubbing.
  • ElevenLabs — Audio platform for text to speech, speech to text, voice cloning, sound effects and music, plus voice agents and an API.
  • Murf AI — Voice platform offering text-to-speech voiceovers, AI dubbing, a real-time speech API and conversational voice agents.
  • Speechify — Text-to-speech app that reads documents, PDFs, emails and web pages aloud, with voice typing and AI podcast features in Premium.
  • MVSEP — Online service for separating vocals and instruments from a song.
  • Suno — AI music generator that turns text prompts into songs with vocals.
  • Ask Brave — AI answer feature from the Brave search engine.
  • ChatGPT — AI assistant that answers questions, writes, generates images, codes and helps complete tasks from a single chat interface.
  • Claude — Anthropic's AI assistant for chat, analysis of data, writing, coding and working through complex problems on web, desktop and mobile.
  • DeepSeek — Web chat for DeepSeek's language models; an account may be needed.
  • DeepSeek — AI lab offering a chat assistant on web, mobile and desktop apps, plus an API platform.
  • Gemini — Google's AI assistant for chat, writing help and image generation.
  • Google AI Mode — AI-generated answers inside Google Search, with follow-up questions.
  • Google AI Studio — Google's browser workspace for trying Gemini models, testing prompts and creating API keys.
  • Grok — AI assistant for chatting, creating images, writing code and getting real-time answers drawn from the web and X.
  • Microsoft Copilot — Microsoft's AI chat assistant that answers questions, searches the web with sources, helps with writing and translation, and creates images.
  • Mistral Vibe — Mistral's AI assistant and agent for work and coding, with web search and free and paid consumer plans.
  • Qwen Studio — Web chat interface for Alibaba's Qwen family of language models.
  • Together.ai — Chat playground from Together AI for trying open-weight models hosted on its platform.
  • Z.ai — Chat interface for the GLM language models from Z.ai (Zhipu AI).
  • Bolt.new — AI builder for websites, apps and prototypes from prompts, with hosting, databases and token-based usage plans.
  • Claude Code — Agentic coding tool from Anthropic that edits files and runs commands across a codebase from the terminal, IDEs, web and apps.
  • GitHub Copilot — AI coding assistant offering inline suggestions, chat and agent features in IDEs, the terminal and GitHub.
  • Lovable — AI app builder that turns plain-language descriptions into full-stack apps, websites and internal tools, including hosting and auth.
  • Replit — Platform where you describe an app or site in plain language and it builds, hosts and publishes it with a built-in database.
  • Windsurf — AI code editor with the Cascade agent that writes, fixes and plans code, with live previews and one-click deployment.
  • Canva — Online graphic design tool for making social posts, presentations, posters and videos from templates, with AI features.
  • Framer — Web design and publishing platform with AI agents, a CMS, hosting, SEO tools, analytics and team collaboration.
  • Looka — AI-assisted logo maker and brand design platform where logos can be created free and files or brand kits are bought separately.
  • Photoroom — AI photo editor for sellers and creators with background removal, product photography, batch editing, brand kits and an API.
  • Brainly — AI homework help and test prep service for grades 7-12 that breaks assignments into steps and builds practice around knowledge gaps.
  • Khanmigo — Khan Academy's AI tutor that guides learners with questions, and gives teachers help with lesson planning, quizzes and rubrics.
  • Photomath — Math help app that solves scanned or typed problems with step-by-step explanations, from elementary math through calculus.
  • StudyFetch — Turns course materials such as slides, lectures and notes into flashcards, quizzes and practice tests, with an AI tutor.
  • Adobe Firefly — Adobe's creative space for generating and editing images, video, audio and vector graphics from text prompts.
  • Black Forest Labs (FLUX) — AI lab behind the FLUX visual models, offered via API, browser playground, enterprise deals and licensed open weights.
  • ComfyUI — Node-based interface for building image and video generation workflows that run on your own hardware.
  • Fooocus — Simple local image-generation front end built on Stable Diffusion XL. The project is in limited-maintenance mode.
  • Ideogram — Generative media platform with image and video models, creative apps such as background removal and ad resizing, and an API.
  • Invoke — Creative interface for running image-generation models locally, with a node-based workflow editor.
  • Krea — Creative suite for generating, editing and upscaling images, video and 3D, including realtime generation and LoRA training.
  • Leonardo.Ai — Platform for generating images and video, with editing, upscaling, team workspaces and a developer API.
  • Midjourney — Research lab whose image and video models are accessed through monthly or yearly subscription plans.
  • Mochi Diffusion — Native macOS app for running Stable Diffusion models on Apple hardware.
  • Recraft — Platform for generating and editing images, vectors and mockups with its own and third-party models, plus an API.
  • Stability Matrix — Package manager and launcher that installs and manages Stable Diffusion interfaces on your computer.
  • Cherry Studio — Desktop client for using several AI providers and local models from one app.
  • Jan — Desktop app that runs language models locally so chats can stay on your own machine.
  • KoboldCpp — Single-file way to run GGUF language models locally with a built-in web interface and API.
  • llama.cpp — Open-source C/C++ engine for running large language models locally on everyday hardware. FMHY links llama.app; the project repository is listed here instead.
  • LM Studio — Desktop app for discovering, downloading and chatting with language models that run on your own hardware.
  • Open WebUI — Self-hosted web interface for chatting with local and remote language models. Check its licence terms before commercial use.
  • SillyTavern — Self-hosted chat front end that connects to many language-model back ends, popular for character-based chat.
  • TextGen — Web interface for running and experimenting with local text-generation models.
  • Unsloth — Tools for fine-tuning and running language models efficiently on your own hardware. The core library is open source; check which features are paid.
  • AdCreative.ai — AI platform that generates ad creatives, ad copy and videos and scores them for predicted performance.
  • Brandwatch — Suite for social media management, consumer intelligence and influencer marketing with AI-assisted monitoring.
  • HubSpot (Breeze AI) — CRM platform with Breeze AI agents and assistant that support marketing, sales and customer service work.
  • Klaviyo — B2C customer platform that sends automated, personalized email, SMS and push messages and offers AI agents for campaigns.
  • Predis.ai — AI ad generator that creates video, product and static image ads from a link or prompt, with brand kits and scheduling.
  • Surfer — Platform for tracking brand visibility in Google and AI search engines and for auditing and writing optimized content.
  • Hugging Face — Hub for sharing and discovering machine-learning models, datasets and demo apps.
  • OpenModelDB — Searchable catalogue of community-made AI image upscaling models.
  • Fathom — AI meeting assistant that records, transcribes and summarizes calls and connects to tools such as Slack, CRMs and Zapier.
  • Fireflies.ai — AI meeting assistant that records and transcribes video calls, creates summaries and action items, and supports searching past meetings.
  • Gamma — AI tool for creating presentations, websites, documents and social posts, with export to PDF, PPTX and Google Slides.
  • Motion — Work planner that automatically prioritizes tasks, schedules meetings and resolves calendar conflicts, with AI chat and notetaking.
  • Notion AI — AI features inside Notion, including an agent for docs and databases, meeting notes, workspace search and research reports.
  • Otter.ai — AI notetaker that transcribes meetings on Zoom, Teams and Meet, then writes summaries and action items and answers questions.
  • Reclaim.ai — Calendar assistant that schedules focus time, habits, tasks and meetings automatically around existing events.
  • Prompt Engineering Guide — Free guide with techniques, examples and papers for writing effective prompts.
  • Consensus — AI search tool for scholarly research that helps users find, organize and analyze findings from scientific papers.
  • Elicit — AI research assistant that searches scholarly papers and clinical trials and produces cited reports, tables and literature reviews.
  • Gemini Notebook (formerly NotebookLM) — Google's AI research tool and thinking partner that reviews materials users provide and simplifies or reshapes their content.
  • Perplexity — AI answer engine that responds to questions with up-to-date, sourced answers, with an optional Pro tier for deeper research.
  • ResearchRabbit — Literature discovery tool that maps citations and recommends related papers, authors and topics based on papers users add.
  • SciSpace — AI research assistant for literature reviews, paper search, chatting with PDFs, data extraction and cited writing.
  • Scite — Research platform using Smart Citations to show whether papers support or contradict a claim, plus an AI assistant and collections.
  • Whisper — Open-source speech-recognition model from OpenAI for multilingual transcription.
  • Google Flow — Google's web tool for generating and editing short AI video clips.
  • HeyGen — Video platform that turns text, images or audio into videos using AI avatars, voiceovers, captions and translation.
  • invideo — Video editor combining a multitrack timeline with AI agents that edit footage from plain-language instructions and generate media.
  • Kling AI — AI video and image generator with a creative studio, node-based canvas editor, and API and CLI tools for batch production.
  • Luma AI — Creative platform where AI agents work across video, image, audio and text.
  • Pika — Creative platform for generating video, images and audio, bundling several models, editing apps and a developer API.
  • Runway — Cloud platform for generating and editing video, images and audio, with a developer platform for model pipelines.
  • Synthesia — Business video platform that creates videos with AI avatars and voiceovers in 140+ languages, plus interactive sessions and an API.
  • Copy.ai — Go-to-market AI platform with workflows, agents, chat and brand voice for sales, marketing and operations content.
  • Grammarly — AI writing assistant that checks grammar, clarity and tone, rewrites text, and offers AI detection and humanizing tools.
  • Jasper — AI platform for marketing teams that runs agents on content workflows and keeps output consistent with stored brand voice and style.
  • QuillBot — Writing toolkit offering paraphrasing, grammar checking, summarizing, translation, citation generation and AI and plagiarism detection.
  • Sudowrite — AI writing tool for fiction that helps plan stories, draft and expand scenes, rewrite passages and give feedback on drafts.
  • Wordtune — AI writing assistant that paraphrases and rewrites text, checks grammar, adjusts tone and summarizes articles and documents.
  • TextFX — Experimental Google Labs tools that use AI to explore wordplay and creative language.

Developer Tools

Learning, editors, hosting, testing, reference and utilities for software developers.

  • CodeRabbit — AI-assisted code review for pull requests.
  • OpenCode — AI coding agent that runs in the terminal and can connect to several model providers.
  • hoppscotch — Open-source API client for building and testing requests.
  • BrowserBench — Browser benchmark suites from the major browser vendors.
  • CodeSandbox — Online development environment for building and sharing web projects.
  • Google Colaboratory — Hosted notebook environment for running Python code and machine-learning experiments in the browser.
  • judge0 — Browser-based code editor that runs programs in many languages.
  • Acode — Code editor for Android phones and tablets.
  • Android Studio — Google's official IDE for building Android apps.
  • Emacs — Extensible, customisable text editor from the GNU project.
  • JetBrains — Family of professional IDEs for many languages; some tools are free and others are paid.
  • Lite XL — Lightweight and fast code editor with a plugin system.
  • Neovim — Modern, extensible fork of the Vim text editor.
  • VSCodium — Community build of Visual Studio Code distributed without Microsoft branding and telemetry.
  • zed — Fast code editor with built-in collaboration and AI features.
  • Docker — Platform for building, running and sharing applications in containers. Desktop licensing differs by organisation size.
  • Docker Hub — Public registry for finding and sharing container images.
  • Podman — Open-source container engine that runs without a central daemon, compatible with Docker-style workflows.
  • Portainer — Web interface for managing Docker and Kubernetes environments.
  • DB Browser — Visual tool for creating, browsing and editing SQLite database files.
  • KrebsOnSecurity — Long-running independent news and investigation site covering cybersecurity.
  • Lobsters — Community link-sharing site focused on programming and technology.
  • StackOverflow — Large question-and-answer site for programming and software development.
  • Hacker News — Community news and discussion site focused on technology and startups.
  • AppDevTools — Collection of online developer utilities for everyday formatting and conversion tasks.
  • Composerize — Converts docker run commands into Docker Compose files.
  • DevToys — Desktop collection of offline developer utilities such as encoders, formatters and generators.
  • generatedata.com — Generates customisable fake data in many formats for testing and demos.
  • ImHex — Hex editor for analysing and editing binary data, with a web version.
  • mess with dns — Sandbox for experimenting with DNS records safely and seeing how they behave.
  • Regex Vis — Visualises regular expressions as diagrams to make them easier to read.
  • regex101 — Online regular-expression tester with explanations, a debugger and a library of patterns.
  • Vim Bootstrap — Generates a starter Vim or Neovim configuration for the languages you choose.
  • 30 Seconds of Code — Short, practical code snippets for common programming tasks.
  • DevDocs — Fast, searchable API documentation for many languages and frameworks in one place.
  • Free for Developers — Curated list of services that offer free tiers for developers.
  • Base64 Decode — Online Base64 encoder and decoder.
  • CyberChef — Web app from GCHQ for encoding, decoding, encrypting and analysing data, runs locally in the browser.
  • Nerd Fonts — Patched developer fonts with many glyphs and icons for terminal use.
  • Fork — Git desktop client with a fast interface for history, diffs and merges.
  • GitHub Desktop — GitHub's own desktop client for common Git workflows.
  • refined-github — Browser extension that improves the GitHub interface and adds small productivity features.
  • lychee — Fast command-line checker for broken links in websites and documents.
  • tesseract — Open-source OCR engine that extracts text from images, usable from the command line or as a library.
  • GitHub Gists — Share code snippets and notes through GitHub; needs an account.
  • endoflife.date — Tracks release and end-of-life dates for software, frameworks and operating systems.
  • ss64 — Reference index for command-line tools across Linux, Windows and macOS.
  • Catppuccin — Popular community colour-scheme collection with ports for many apps and editors.
  • Dracula — Dark colour theme available for many editors and applications.
  • Astro — Web framework for building fast, content-focused websites.
  • Carrd — Simple builder for one-page websites with free and paid plans.
  • Docusaurus — Static site generator from Meta designed for documentation and blogs.
  • Eleventy — Simple, flexible static site generator written in JavaScript.
  • GoAccess — Open-source web log analyser that shows traffic reports in a terminal or browser.
  • Hugo — Fast static site generator written in Go.
  • Playwright — Open-source framework for end-to-end browser testing and automation.
  • Tailwind CSS — Utility-first CSS framework for building custom interfaces quickly.
  • VitePress — Vue-powered static site generator suited to documentation sites.
  • Check-Host — Checks whether a website or server is reachable from several locations around the world.
  • Cloudflare Pages — Cloudflare's hosting for static sites with Git-based deployments.
  • Cloudflare Workers — Cloudflare's serverless platform for running code at the network edge, with a free tier.
  • GitHub Pages — Hosts static websites directly from a GitHub repository.
  • Neocities — Free static website hosting in the spirit of classic personal home pages.
  • surge — Command-line tool for publishing a static site to the web.
  • vercel — Platform for deploying front-end and full-stack web apps, with a free hobby tier.

Productivity

Notes, tasks, scheduling, email, RSS, bookmarks, careers and personal organisation.

  • Floccus — Open-source bookmark and tab sync across browsers and devices.
  • Raindrop.io — Bookmark manager with collections, tags and a free plan.
  • Sidebery — Firefox extension that shows tabs and bookmarks in a sidebar tree.
  • Reverse Interview — Community list of questions to ask a prospective employer.
  • RX Resume — Open-source resume builder that can be self-hosted.
  • Tech Interview Handbook — Free guide for preparing for technical interviews and the software-engineering job hunt.
  • NextCloud — Open-source, self-hostable platform for files, calendars, contacts and team collaboration.
  • Betterbird — Thunderbird fork with extra fixes and features.
  • Mailspring — Desktop email client; the core is free and extra features need a subscription.
  • Thunderbird — Open-source email client with calendar and contacts support.
  • Ghostfolio — Open-source wealth-management software for tracking investments.
  • Rotki — Open-source, local-first portfolio tracker for crypto and tax reporting.
  • TradingView — Market charts and analysis platform with a free tier.
  • Anytype — Encrypted, local-first workspace for notes, tasks and databases.
  • AppFlowy — Open-source workspace for notes, docs and projects that can be self-hosted.
  • Logseq — Open-source, privacy-first knowledge base and outliner.
  • Notesnook — Open-source note-taking app with end-to-end encryption.
  • Obsidian — Local-first Markdown note-taking app with a plugin ecosystem; free for personal use.
  • Immich — Self-hosted photo and video library with mobile backup and search.
  • Feedbro — Browser-extension RSS reader and feed manager.
  • Feedly — RSS reader and news-aggregation service with a free plan.
  • Inoreader — RSS reader with a free plan and a sign-up requirement.
  • RSS Bridge — Self-hosted tool that generates RSS feeds for sites without one.
  • RSS Guard — Open-source desktop RSS and feed reader.
  • Cal.com — Open-source scheduling platform for booking meetings, with a hosted free tier.
  • LettuceMeet — Group-scheduling polls for finding meeting times; the best-known one is open-source.
  • Flameshot — Open-source screenshot tool with built-in annotation.
  • NormCap — Open-source screen-capture tool that recognises text in a selected area and copies it.
  • ShareX — Open-source screen capture and recording tool for Windows with upload and automation options.
  • Text Grab — Windows utility for grabbing text from screens, images and windows.
  • Anori — Open-source new-tab dashboard with widgets.
  • Bonjourr — Minimal, customisable new-tab page.
  • MONKNOW — Customisable start page and new-tab dashboard.
  • Mue — Open-source new-tab extension with wallpapers, quotes and widgets.
  • Kimai — Open-source time-tracking application.
  • Super Productivity — Open-source to-do list with time tracking and integrations with issue trackers.
  • TickTick — To-do and calendar app with a free tier.

Design, Images & Video

Image editing, drawing, icons, fonts, diagrams, 3D, video tools.

  • Blender — Open-source 3D creation suite for modelling, animation, rendering and video editing.
  • Onshape — Browser-based CAD with real-time collaboration; the free plan has restrictions on use.
  • Printables — 3D-printing model library and community by Prusa.
  • Thingiverse — Community site for sharing 3D-printable models; check each model's licence.
  • TAAG — Generates ASCII banner text in many figlet fonts.
  • DataVizCatalogue — Reference guide to chart types and when to use them.
  • draw.io — Free diagramming tool for flowcharts, UML and network diagrams, with browser and desktop apps.
  • Kroki — Service that turns diagram descriptions in text into images.
  • RAWGraphs — Open-source tool for building data visualisations from spreadsheets.
  • ColorHexa — Reference site that shows colour codes, conversions, palettes and related shades for any colour.
  • Realtime Colors — Previews colour palettes and fonts on a realistic web page as you change them.
  • Color Designer — Online colour-palette generator and colour-scheme tools.
  • Figma — Collaborative interface-design and prototyping tool with a free plan.
  • awwwards — Showcase of award-winning websites for design inspiration.
  • 1001 Fonts — Large font archive; license terms vary by font and must be checked.
  • DaFont — Large font archive; license terms vary by font and must be checked.
  • Font Analyzer — Identifies a font from an image.
  • Font Squirrel — Curated free fonts that are licensed for commercial use.
  • FontDrop — Drop a font file to inspect its glyphs, metrics and features.
  • FontSource — Self-hosted open-source web fonts for use in web projects.
  • TypeTrials — Playground for exploring variable-font axes.
  • Iconify — Searchable collection of open-source icon sets with an API.
  • Icons8 — Icon library and design resources, free with attribution.
  • Noun Project — Large library of monochrome icons; free with attribution.
  • SVG Repo — Large library of SVG icons and vectors; check each file's licence.
  • SVGL — Library of SVG logos for popular products and brands, searchable and copy-friendly.
  • Birme — Online batch image resizer and converter.
  • Caesium — Open-source image compressor for reducing file sizes in bulk.
  • GIMP — Open-source image editor for retouching, drawing and photo manipulation.
  • ImageMagick — Command-line suite for converting, resizing and editing images in bulk.
  • ImgOps — Launcher that sends an image to many image-search and editing services.
  • Photopea — Browser-based editor with layers and support for PSD files, free with ads.
  • Pixlr — Browser image editor with photo-editing and design tools; some features need a subscription.
  • Rembg — Open-source tool that removes image backgrounds, usable from the command line or code.
  • Squoosh — Browser-based image compressor and converter from Google Chrome Labs.
  • Upscayl — Open-source desktop app that uses AI models to enlarge and sharpen images.
  • Digikam — Open-source photo manager for organising, tagging and editing large collections.
  • ImageGlass — Open-source image viewer for Windows with a modern interface.
  • IrfanView — Fast, lightweight image viewer for Windows with many format plugins.
  • qView — Minimal, distraction-free image viewer.
  • XnView MP — Image viewer, organiser and converter supporting a very large number of formats.
  • shots.so — Creates device-framed mockups and styled screenshots.
  • Inkscape — Open-source vector graphics editor for illustrations, logos and diagrams.
  • Krita — Open-source digital painting and illustration program.
  • miniPaint — Open-source image editor that runs in the browser.
  • Pinta — Simple, easy-to-use drawing and image-editing program.
  • Aseprite — Pixel-art and sprite editor whose source is available; ready-made builds are sold.
  • EZGif — Online GIF maker and editor with cropping, resizing, effects and video-to-GIF conversion.
  • Gifski — High-quality GIF encoder that converts video into GIFs.
  • LibreSprite — Open-source pixel-art and sprite editor.
  • Piskel — Free online editor for pixel art and animated sprites.
  • Codecs Wiki — Community wiki covering video codecs, encoding and processing.
  • DaVinci Resolve — Professional video editor and colour-grading suite with a free version.
  • Eyecandy — Visual library of video effects and editing techniques.
  • HandBrake — Open-source video transcoder for converting between formats.
  • Kdenlive — Open-source non-linear video editor.
  • LosslessCut — Open-source tool for trimming and cutting video and audio files without re-encoding.
  • MKVToolNix — Open-source tools for creating, editing and inspecting Matroska (MKV) files.
  • OBS Studio — Open-source software for screen recording and live streaming.
  • Pikimov — Browser-based motion-graphics and animation editor.
  • Reincubate Camo — Uses a phone as a high-quality webcam.
  • Shotcut — Free, open-source cross-platform video editor.
  • Shutter Encoder — Free video converter and editor built on FFmpeg.
  • Streamer.bot — Automation tool for livestreamers that works with OBS and chat platforms.
  • Excalidraw — Open-source virtual whiteboard with a hand-drawn look.

Writing, Text & Documents

Office suites, PDF, Markdown/LaTeX, translation, text and Unicode tools.

  • Bear Blog — Minimal blogging platform with a free tier.
  • CryptPad — Open-source, end-to-end-encrypted collaboration suite for documents, spreadsheets and kanban boards.
  • Harper — Open-source offline grammar checker that works locally.
  • Overleaf — Online LaTeX editor for collaborative writing and compilation.
  • Typst — Modern typesetting system and collaborative web app, an alternative to LaTeX.
  • HedgeDoc — Open-source collaborative Markdown editor for real-time notes.
  • Markdown Guide — Guide and cheat sheet for the Markdown syntax.
  • i2ocr — Online OCR service that converts images and scanned documents to text.
  • LibreOffice — Free and open-source office suite for documents, spreadsheets and presentations.
  • OnlyOffice — Office suite with online collaborative editing, free for personal use and limited use for teams.
  • Proton Docs — End-to-end-encrypted online document editor from Proton.
  • BentoPDF — Browser-based PDF toolkit that processes files locally in the browser. Verify the privacy claims yourself before using sensitive files.
  • Paperless-ngx — Self-hosted document-management system that scans, indexes and archives paper documents.
  • PDF24 — Free online and desktop PDF tools for converting, merging, compressing and editing.
  • Stirling — PDF toolkit for merging, splitting, converting and editing, available self-hosted or as a desktop app.
  • Notepad++ — Free text and source-code editor for Windows.
  • TextFixer — Collection of simple online text-manipulation tools.
  • DeepL — AI-based online translator with a free tier and text length limits.
  • Google Translate — Google's free multi-language translator.
  • Translate Web Pages — Browser extension that translates entire web pages.
  • Amp What — Search Unicode characters and symbols by name.
  • Emojipedia — Emoji encyclopedia with meanings, platform renderings and lookup.
  • FSymbols — Collection of Unicode symbol and text generators.
  • symbl — Searchable index of Unicode symbols, characters and emoji.
  • YayText — Generates Unicode-styled text for social media bios and posts.
  • Manuskript — Open-source tool for organising and writing long-form fiction.
  • NovelWriter — Open-source plain-text editor for writing novels.

Education & Learning

Courses, languages, reference, study tools and science resources.

  • Arts and Culture — Google's gateway to museum collections and virtual tours.
  • VADS — UK visual-arts collection of images for learning and teaching.
  • GeoGebra — Interactive maths software for graphing, geometry, algebra and statistics.
  • Omni Calculator — Large collection of online calculators across finance, health, maths and everyday topics.
  • Class Central — Search engine and reviews for online courses from many providers.
  • edX — Online courses from universities and institutions; many can be audited for free.
  • Khan Academy — Nonprofit with free lessons and practice in maths, science and many other subjects.
  • MitOpenCourseWare — MIT's free publication of course materials from its classes.
  • NPTEL — Free engineering and science course videos from Indian institutes of technology.
  • Automate The Boring Stuff — Free online edition of a beginner-friendly book on automating everyday tasks with Python.
  • Build your own X — Curated list of tutorials for recreating well-known technologies from scratch.
  • CraftingInterpreters — Free online book on building programming-language interpreters.
  • CS50 — Harvard's introductory computer-science course with free lectures and problem sets.
  • freeCodeCamp — Nonprofit offering free interactive coding lessons and project-based curricula.
  • FullStackOpen — Free university course on modern web development with JavaScript, React and Node.js.
  • JavaScript.info — In-depth modern JavaScript tutorial from the basics to advanced topics.
  • Leetcode — Coding practice platform with algorithm problems and interview preparation.
  • Odin Project — Free project-based curriculum for learning full-stack web development.
  • OWASP Cheatsheet — OWASP's concise guides to common application-security topics.
  • PortSwigger Academy — Free web-security training with explanations and hands-on labs from PortSwigger.
  • TeachYourselfComputerScience — Self-study guide that recommends books and resources for core computer-science topics.
  • Merriam-Webster — Established English dictionary and thesaurus.
  • OneLook — Searches many dictionaries and word lists at once.
  • Wikipedia — Free online encyclopedia written and edited by volunteers.
  • Wiktionary — Collaborative multilingual dictionary with definitions and word origins.
  • Language Reactor — Browser extension for studying languages with video subtitles, translations and vocabulary tools.
  • Language Transfer — Audio-based language courses taught as guided lessons, funded by donations.
  • Omniglot — Online encyclopedia of writing systems and languages.
  • Readlang — Learn a language by reading web pages and clicking words for translations and flashcards.
  • SpanishDict — Spanish–English dictionary and translator with example sentences and learning tools.
  • SpreadTheSign — Multi-language sign-language dictionary with video examples.
  • TheMoeWay — Immersion-based guide for learning Japanese.
  • Yomitan — Browser extension that shows a popup dictionary when you hover over foreign-language text.
  • BetterExplained — Guides that explain mathematical ideas with intuition and analogies.
  • Deep playground — Interactive browser demo for learning how small neural networks train.
  • KiCad — Open-source suite for designing electronic schematics and printed circuit boards.
  • LibreTexts Chemistry — Open chemistry textbooks from the LibreTexts project.
  • Manim — Python library for programmatically creating explanatory maths animations.
  • OEIS — Searchable database of integer sequences.
  • Paul's Online Math Notes — Free university-level notes for algebra, calculus and differential equations.
  • PhET — Free interactive science and maths simulations from the University of Colorado Boulder.
  • Ptable — Interactive periodic table with properties and data for each element.
  • The Feynman Lectures — Free online edition of the Feynman Lectures on Physics.
  • WolframAlpha — Computational knowledge engine that answers maths and science questions; some features need a subscription.
  • Kiwix — Offline reader for Wikipedia and other large reference libraries.
  • EarthData — NASA's tool for browsing near-daily satellite imagery of Earth.
  • Histography — Interactive timeline for exploring events across history.
  • NASA — US space agency's website with news, images and educational resources.
  • OneZoom — Interactive explorer of the evolutionary tree of life.
  • Our World in Data — Research and interactive charts on global issues such as health, poverty and energy.
  • Stanford Encyclopedia of Philosophy — Scholarly, peer-reviewed encyclopedia of philosophy.
  • Wikispecies — Open directory of species run by the Wikimedia community.
  • Worldometer — Live world statistics and counters covering population, economy and environment.
  • Phys — Science, physics and technology news site.
  • Drawabox — Free structured lessons that teach the fundamentals of drawing.
  • Anki — Spaced-repetition flashcard app with a large library of shared decks. The iOS app is paid.
  • keybr — Adaptive touch-typing practice that focuses on your weak keys.
  • Monkeytype — Typing test and practice site with many modes and customisation.
  • OpenBoard — Open-source interactive whiteboard software for teaching.

Search & Research

Search engines, archives, OSINT and news/research lookups.

  • CachedView — Checks several archive and cache services for a copy of a page.
  • Internet Archive — Non-profit digital library of websites, books, audio, video and software.
  • Wayback Machine — Lets you view archived snapshots of web pages and save new ones.
  • Web Archives — Browser extension that finds archived copies of the current page.
  • Awesome Search — Search engine across GitHub awesome lists.
  • Shodan — Search engine for internet-connected devices and services, used in security research. Use only lawfully.
  • Current Events Wiki — Wikipedia's portal of summarised current events by date.
  • Analyst Research Tools — Directory of online OSINT tools for investigators and researchers.
  • IntelTechniques — Open-source-intelligence training and resource collection.
  • Brave Search — Independent search engine with privacy-focused defaults.
  • DuckDuckGo — Privacy-focused search engine that doesn't track your searches.
  • Startpage — Search engine that proxies Google results without tracking.
  • Filmot — Searches YouTube subtitles and captions for words and phrases.
  • YouTube Advanced Search — Advanced search interface for finding YouTube videos with extra filters.

Audio & Music

Audio editors, players, synths, sheet music, transcription and music tools.

  • BandLab — Free online studio for recording, mixing and sharing music with others.
  • Dexed — Software emulation of the Yamaha DX7 synthesizer as a plugin.
  • OpenMPT — Music tracker for creating module-style music with samples.
  • Surge XT — Open-source hybrid synthesizer plugin for music production.
  • Tenacity — Open-source audio editor forked from Audacity.
  • Vital — Wavetable synthesizer plugin with a free tier and paid upgrades.
  • Foobar2000 — Customisable audio player known for wide format support and plugin components.
  • koel — Self-hosted web app for streaming your personal music library.
  • MP3Tag — Tag editor for organising and batch-editing audio file metadata.
  • MusicBee — Music manager and player for Windows with library organisation and tagging features.
  • MusicBrainz Picard — Open-source tagger that identifies music files and fills in metadata from the MusicBrainz database.
  • Navidrome — Self-hosted music server that streams your own music collection to browsers and apps.
  • FFmpeg — Open-source command-line toolkit for converting, recording and processing audio and video files.
  • Sonic Visualizer — Application for viewing and analysing the contents of audio files.
  • Spek — Small tool that shows an audio file's spectrogram, useful for checking quality.
  • AutoEQ — Generates equalizer settings to tune headphones toward a target sound.
  • LRCLIB — Open database and API of time-synced song lyrics.
  • LyricsTranslate — Community site with song lyrics and translations between many languages.
  • Shazam — Identifies songs playing around you and links to streaming services.
  • MuseScore — Free music notation software for writing, playing back and printing scores.
  • NCS — Label that releases music for creators; check each track's licence and attribution terms before use.
  • OrangeFreeSounds — Collection of free sound effects and music; check each file's licence before use.
  • YouTube Audio Library — YouTube's library of free music and sound effects for video creators; check the licence on each track.
  • IMSLP — Large library of public-domain sheet music.
  • Turboscribe — AI transcription service with a limited free tier.

Privacy & Security

Privacy guides, password managers, authenticators, encrypted messaging, DNS and breach checks.

  • JustDeleteMe — Directory showing how to delete your account on many websites.
  • Aegis — Open-source Android two-factor authentication app.
  • Ente Auth — Open-source two-factor authenticator with encrypted backups.
  • Stratum — Open-source Android authenticator app with encrypted backup.
  • Have I Been Pwned Passwords — Checks whether a password has appeared in known breaches without sending the full password.
  • Have I Been Pwned? — Checks whether your email address appeared in a known data breach.
  • LibRedirect — Browser extension that redirects social sites to privacy-friendly alternative frontends.
  • arkenfox — Community configuration file that hardens Firefox privacy settings; read the warnings before using.
  • WalletScrutiny — Independent reviews that check whether crypto wallets are verifiably open-source and secure.
  • Cloudflare 1.1.1.1 — Public DNS resolver operated by Cloudflare with a privacy commitment.
  • Quad9 — Public DNS resolver that blocks known malicious domains.
  • DuckDuckGo Email Protection — Free email-forwarding addresses that strip trackers from incoming mail.
  • Proton Mail — Encrypted email with a limited free tier.
  • Tuta — Encrypted email provider with a free plan.
  • Briar — Peer-to-peer messenger that works over Tor, Bluetooth or Wi-Fi without a central server.
  • Signal — End-to-end-encrypted messenger from a non-profit; sign-up needs a phone number.
  • SimpleX — Private messenger that uses no user identifiers.
  • Safing Portmaster — Open-source application firewall and network monitor with a built-in secure DNS resolver.
  • Whonix — Security-focused operating system that routes traffic through Tor inside virtual machines.
  • Bitwarden — Open-source password manager with cloud or self-hosted sync and a free personal tier.
  • KeePass — Long-running open-source password manager for Windows with a plugin ecosystem.
  • KeePassDX — Open-source Android app for opening KeePass databases.
  • KeePassium — KeePass-compatible password manager for iOS and macOS with a free tier.
  • KeePassXC — Open-source, community-developed password manager that stores an encrypted local database.
  • Proton Pass — Password manager from Proton with a free tier and end-to-end encryption.
  • FotoForensics — Online image-forensics service that analyses a photo for signs of editing.
  • Cryptomator — Encrypts files before they sync to cloud storage, using vaults you unlock with a password.
  • VeraCrypt — Open-source tool for encrypting disks, partitions and containers.
  • Awesome Privacy — Curated list of privacy and security tools and resources.
  • No Trace — Step-by-step guides for protecting your privacy online.
  • Privacy Guides — Community-run privacy tool recommendations and educational articles.
  • Surveillance Self-Defense — Electronic Frontier Foundation's guides to protecting yourself from surveillance.
  • The Hitchhiker’s Guide — Long-form guide to online anonymity and privacy practices.
  • The New Oil — Educational guides to privacy and security for everyday users.
  • LibreWolf — Privacy-hardened Firefox fork with strong defaults.
  • Mullvad Browser — Privacy-focused browser built by Mullvad and Tor Project that resists fingerprinting.
  • Tor Browser — Onion-routed browser from the Tor Project that hides your location and browsing from trackers.
  • Binary Ninja — Reverse-engineering platform with a free edition. Dual-use: use only on software you are allowed to analyse.
  • censys — Search engine for internet-connected hosts and certificates, used for security research.
  • Frida — Dynamic instrumentation toolkit for inspecting running programs. Dual-use: use only where you have permission.
  • GHIDRA — Software reverse-engineering framework released by the NSA. Dual-use: use only on software you are allowed to analyse.
  • HackTricks — Community wiki of penetration-testing and security-auditing techniques. For authorised testing only.
  • pyWhat — Command-line tool that identifies what a piece of text or a file is, such as a hash, key or address.
  • x64dbg — Open-source debugger for Windows programs. Dual-use: use only where you have permission.

Web Utilities

Browsers, extensions, URL and site tools, pastebins, link pages, web archiving and frontends.

  • Auto Tab Discard — Browser extension that suspends inactive tabs to save memory.
  • Clipper — Browser extension for copying web content in several formats.
  • Dark Reader — Browser extension that applies a dark mode to websites.
  • DeArrow — Browser extension that replaces clickbait YouTube titles and thumbnails.
  • Return YouTube Dislike — Browser extension that restores a dislike estimate on YouTube videos.
  • Stylus — Browser extension for applying custom styles to websites.
  • User Styles — Community site hosting user styles for the Stylus extension.
  • Firefox — Open-source web browser from Mozilla.
  • Firefox Trains — Tracks the current Firefox release schedule.
  • Gajim — Open-source XMPP chat client with end-to-end encryption support.
  • Mumble — Open-source, low-latency voice-chat application with end-to-end encrypted voice.
  • Stoat — Open-source chat platform positioned as an alternative to Discord.
  • Consumer Rights Wiki — Community wiki documenting practices that affect consumer rights.
  • Dark Patterns Tip Line — Tip line and guide for reporting deceptive design practices.
  • deSEC — European non-profit DNS hosting service with a free tier and dynamic DNS.
  • FreeTube — Open-source desktop YouTube client that keeps your subscriptions local.
  • Invidious — Open-source alternative YouTube front-end that doesn't use Google's tracking.
  • Linkstack — Self-hosted open-source alternative to link-in-bio pages.
  • Linktree — Link-in-bio page builder with a free plan.
  • HeyTools — Collection of online utilities for text, PDF, images and code.
  • PineTools — Large collection of online calculators, converters and text, image and code utilities.
  • TinyWow — Online toolbox for PDF, image, video and writing tasks; many tools have usage limits.
  • fast — Simple internet speed test from Netflix.
  • PrivateBin — Open-source pastebin that encrypts content in the browser before it reaches the server.
  • Rentry — Markdown pastebin with custom URLs.
  • Mini QR — Customisable QR-code generator that runs in the browser.
  • searx.space — Lists public SearXNG instances with uptime and privacy statistics.
  • Down for Everyone or Just Me — Quick check whether a website is down for everyone or just for you.
  • Downdetector — Outage-tracking site fed by user reports.
  • SocialBlade — Public social-media statistics and analytics tracker.
  • Flagfox — Firefox extension that shows a site's server location and offers URL-related tools.
  • HTTPStatus — Checks a URL's HTTP status code and redirect chain.
  • WhereGoes — Shows where a short link or redirect leads before you click it.
  • Violentmonkey — Open-source userscript manager for customising websites.
  • ArchiveBox — Self-hosted tool for saving and archiving web pages you want to keep.
  • HTTrack — Utility that copies a website to a local folder for offline browsing.

System & Files

File, backup, disk, remote-desktop, package-manager and desktop customisation tools.

  • Equalizer APO — Open-source system-wide parametric equalizer for Windows.
  • VoiceMeeter — Virtual audio mixer for routing audio between devices and apps; donation-supported.
  • AutoHotkey — Scripting language for automating Windows tasks and creating hotkeys.
  • Ditto — Open-source clipboard manager for Windows that keeps history.
  • Lively — Animated wallpaper manager for Windows.
  • OpenRGB — Open-source RGB lighting controller that works across brands.
  • Rainmeter — Desktop customisation tool with skins that show system information.
  • CrystalDiskMark — Disk benchmark utility for measuring drive speed.
  • GParted — Open-source partition editor for resizing and managing disks.
  • Validrive — Checks whether a USB drive really has the storage capacity it claims.
  • WizTree — Very fast disk-space analyser for Windows.
  • f.lux — Adjusts screen colour temperature through the day to reduce eye strain.
  • Monitorian — Windows tool for adjusting external monitor brightness.
  • Aconvert — Online converter for audio, video, documents and images.
  • Advanced Renamer — Batch file renamer for Windows with many rules and previews.
  • Czkawka — Open-source tool for finding duplicate and similar files, images and videos.
  • Everything — Very fast file-name search for Windows using the file system index.
  • File Converter — Windows tool for converting and compressing files from the right-click menu.
  • Fileinfo — Reference database of file extensions and the programs that open them.
  • FreeFileSync — Folder comparison and synchronisation tool for backups and keeping directories in step.
  • Kopia — Fast, encrypted backup tool with snapshots, a command line and a web interface.
  • NanaZip — Archiver for Windows based on 7-Zip with modern Windows integration.
  • PeaZip — Free cross-platform file archiver that supports many formats.
  • Phockup — Command-line tool that organises photos and videos into folders by their capture date.
  • Rescuezilla — Bootable disk-imaging tool for backing up and restoring whole machines.
  • restic — Fast, encrypted, deduplicating command-line backup program.
  • SyncThing — Open-source continuous file synchronisation between your own devices without a central server.
  • TestDisk — Open-source utility for recovering lost partitions and deleted files.
  • VERT — File converter with a web interface; check which conversions run locally in your browser.
  • LocalSend — Open-source app for sending files and messages to nearby devices over your local network.
  • PairDrop — Peer-to-peer file sharing between devices on the same network, in the browser.
  • HWiNFO — Hardware information and real-time monitoring utility for Windows.
  • NVTOP — Terminal tool that monitors GPU usage and processes.
  • KeyCombiner — Learn and practise keyboard shortcuts for popular applications.
  • Scoop — Command-line installer for Windows that installs portable programs without admin rights.
  • UniGetUI — Graphical front end that manages WinGet, Scoop, Chocolatey and other package managers.
  • WinGet — Microsoft's command-line package manager for Windows.
  • Aspia — Open-source remote desktop and file-transfer software.
  • Parsec — Low-latency remote desktop and game streaming; free for personal use, paid tiers for teams.
  • RustDesk — Open-source remote-desktop software that can be self-hosted.
  • Bulk Crap Uninstaller — Open-source tool for removing many Windows applications in bulk.
  • CPU-Z — Utility that reports detailed CPU, memory and motherboard information.
  • PowerToys — Microsoft's collection of power-user utilities for Windows, including window layouts, search and bulk rename.
  • Sysinternals — Microsoft's suite of advanced Windows diagnostic and troubleshooting utilities.
  • EarTrumpet — Per-app volume control for Windows.
  • Windhawk — Open-source marketplace of mods for customising the Windows interface.
  • QEMU — Open-source machine emulator and virtualiser.
  • Virt-Manager — Desktop interface for managing KVM virtual machines on Linux.
  • VirtualBox — Open-source desktop virtualisation software from Oracle.
  • GlazeWM — Open-source tiling window manager for Windows.

Life & Other Resources

Maps, weather, food, health and fitness references, hardware comparisons.

  • Baking Calculators — Baking conversion calculators for ingredient measurements.
  • Grocy — Self-hosted grocery and household management software.
  • Still Tasty — Shelf-life and storage guidance for foods.
  • SuperCook — Finds recipes from the ingredients you already have.
  • Tandoor Recipes — Self-hosted recipe manager and meal planner.
  • Too Good To Go — Marketplace for surplus food from local businesses at a discount.
  • DAREBEE — Free workout plans and exercise guides.
  • OpenFoodFacts — Open, crowd-sourced food database with a barcode-scanning app.
  • Simple Science Fitness — Collection of fitness calculators for training and nutrition.
  • Standard BMI Calculator — Official BMI calculators from US public-health agencies. Not a medical diagnosis.
  • CoMaps — Offline maps app built on OpenStreetMap data.
  • nakarte — Map aggregator with topographic and hiking layers.
  • OpenStreetMap — Community-built open map of the world that anyone can edit.
  • Running Reality — Interactive historical-maps site showing how borders changed over time.
  • StreetComplete — Android app that makes contributing to OpenStreetMap easy with simple quests.
  • Good News Network — News site focused on positive and constructive stories.
  • CPUBenchmark — CPU and GPU benchmark charts and comparisons.
  • GSMArena — Phone specifications, reviews and comparison database.
  • NanoReview — Side-by-side comparisons of phones, CPUs and graphics cards.
  • Open Benchmarking — Open platform for hardware and software benchmark results.
  • PCPartPicker — PC-building planner that checks part compatibility and compares prices.
  • TechPowerup — Hardware news, reviews and a large database of GPU and CPU specifications.
  • Windy — Interactive weather map and forecast visualisation.
  • Breath Ball — Guided breathing exercise in the browser.
  • Medito — Non-profit meditation app with free guided sessions.