Useful browser-based tools
Pinboard is an actively maintained, independent bookmarking service with strong community curation. It embodies the indie web philosophy and surfaces quality human-curated content rather than algorithmic feeds. The site emphasizes browsing for discovery, has minimal corporate influence, and features genuinely interesting links from independent creators, researchers, and technical communities.
Pinboard is an active, indie, privacy-focused bookmarking service maintained by a single developer. It represents the independent web philosophy perfectly - a 'one-man operation' competing without ads or corporate backing. It's a high-quality tool emphasizing simplicity and utility over feature bloat, aligning with the directory's values.
Open-source, privacy-first knowledge management tool. Local-first note-taking with graph visualization, inspired by Roam Research.
Open-source web archiving platform for creating high-fidelity, interactive archives of web content. Preserves the dynamic web as it's experienced.
Web archiving tool by Rhizome that lets you create interactive archives of web content. Preserves dynamic websites, social media, and complex web applications.
Non-profit Git hosting. Community-run alternative to GitHub. Based in Germany.
Minimalist software forge. Git hosting, CI, mailing lists, no JavaScript required.
Quirky web services: profile pages, email forwarding, Mastodon, pastebin. Fun and affordable.
Indie microblogging platform. Own your content, cross-post everywhere. Paid service, no ads.
MySpace-style social network revival. Customizable profiles, old web vibes.
Blogging platform focused on privacy and speed. No trackers, no JavaScript required.
Live sports scores in plain text. No JavaScript, no tracking, just scores.
Naked blogging platform. No tracking, no ads, just writing. Minimal by design.
Boutique search engine for personal websites and digital gardens. User-submitted, human-moderated.
Search engine for the indie web. Finds "grass-fed, free-range HTML" - small, old, obscure sites that big search ignores.
Visualizing Jeff Bezos' wealth. Scroll to understand billions.
Weather model charts. GFS, ECMWF, and ensemble forecasts.
Weather forecast maps. Temperature, wind, precipitation visualization.
Real-time lightning strikes worldwide. Community-detected data.
Community weather stations. Hyperlocal forecasts from citizen scientists.
Free collaborative family tree. Single shared tree for everyone.
Genealogy search tools. Ellis Island, census, and vital records.
Collaborative family tree. World family tree project.
Free genealogy research. Billions of records from LDS archives.
Web accessibility evaluation tool. Free browser extension.
Accessibility testing tools. Browser extensions and developer APIs.
Astronomy weather forecasts. Cloud cover predictions for observing.
Remote telescope network. Image the sky from professional observatories.
Explore the universe with real astronomical data. Virtual telescope.
Real-time sky events. Planet positions, conjunctions, and eclipses.
Free open source planetarium. See the sky from anywhere at any time.
Open source geospatial analysis tool. Beautiful large-scale data visualization.
Query OpenStreetMap data. Extract custom maps and geographic info.
Interactive climate change atlas. Visualize projections by region.
Type International Phonetic Alphabet symbols. Essential for linguists.
Multilingual dictionary portal. Keyboards, translators, and resources for hundreds of languages.
Find language tutors worldwide. Affordable one-on-one lessons.
Dynamic mathematics software. Geometry, algebra, calculus visualization.
Beautiful, free graphing calculator. Also classroom activities.
Test how trackable your browser is. See your fingerprint uniqueness.
Real-time website privacy inspector. See trackers, cookies, and fingerprinting.
Platform for creating and joining webrings. Directory of active rings.
ctrl.blog is an actively maintained independent technology criticism blog that aligns perfectly with the directory philosophy. It features rigorous technical analysis of real consumer problems, investigates corporate practices, and maintains a minimalist design. The author provides detailed, evidence-based critiques of major tech companies—exactly the type of independent, quality-focused content the directory prioritizes.
SourceHut is an actively maintained, thriving platform (recent Dec 2025 pricing announcement demonstrates ongoing development) that perfectly embodies the directory's philosophy. It is a 100% free and open-source software development platform built on minimalism, the Unix philosophy, and privacy principles. It rejects corporate practices (no tracking, no ads) and serves independent developers. It features human-curated tooling (git/mercurial hosting, email-driven mailing lists, continuous integr
3D model search engine. Geometric search across multiple model repositories.
Worldwide railway infrastructure map. Track layouts, signals, and stations.
Film development time database. The classic reference for black and white processing.
Community film development database. Recipes and times for any film/developer combo.
Conlanging tools and community. Dictionary builder, grammar documentation, and forums.
Game Boy music production. The legendary LSDJ tracker for authentic chip sound.
Free virtual Eurorack. Software modular with thousands of free modules.
Eurorack module database and rack planner. Plan your modular synth before buying.
Achievements for retro games. Community-created challenges for classic titles.
Open source tool for interactive stories. No coding required. Powers countless narrative games.
Random generators for RPGs. Dungeons, names, treasures, and encounters.
Digital RPG marketplace. PDFs of indie games, supplements, and classic systems.
Speedrun split sharing and analysis. Upload, compare, and analyze your runs.
Live speedrun racing platform. Real-time races and historical race data.
Cocktail database with ingredient search. Find drinks based on what you have.
Peak database and climbing lists. Track summits and explore mountain statistics.
Long-distance trail planning. PCT, AT, CDT data, town guides, and resupply info.
REI's trail database. Curated routes with maps and community reviews.
Offline maps for outdoor navigation. Topographic, satellite, and public lands layers.
Backcountry mapping tool. Layer USGS topos, satellite, slope angle, and more. Print custom maps.
Trail database and reviews. Maps, photos, and conditions for hikes worldwide.
Biodiversity observation network. AI-assisted species identification and citizen science.
Free bird identification app. Photo ID and sound ID powered by AI and community data.
Cornell Lab's bird observation database. Log sightings, explore hotspots, and contribute to science.
Compare fountain pen inks side by side. Swatches, properties, and filtering by color.
Calendar of keycap group buys. Never miss an IC or GB for artisan and GMK sets.
Design custom keyboard layouts visually. Plan your build before buying parts.
Database of mechanical keyboard switches. Compare force curves, sound profiles, and specifications.
Visual firmware configurator for custom keyboards. Drag-and-drop keymap creation for QMK-powered boards.
Typing practice that adapts to your weaknesses. Algorithm generates lessons based on your problem keys.
DX cluster with propagation predictions. Spots, alerts, and solar data for serious DXers.
Real-time solar and propagation data for hams. HF conditions, solar flux, and band condition widgets.
Real-time APRS tracking map. See amateur radio position reports, weather stations, and objects worldwide.
Worldwide amateur radio repeater directory. Find VHF/UHF repeaters anywhere.
ARRL's electronic QSL confirmation system. Verify amateur radio contacts digitally for awards.
Network of web-accessible software defined radios. Listen to HF bands from receivers worldwide.
Listen to amateur radio via software-defined radios worldwide. Tune shortwave from your browser.
Real-time map of digital mode amateur radio signals. Watch FT8, WSPR, and other modes propagate globally.
Real-time DX cluster spots. See what amateur radio contacts are being made around the world right now.
Ham radio callsign database and community. Look up any amateur radio operator worldwide. Forums and classifieds.
The world's largest open library. Search engine for shadow libraries, providing access to books, papers, and comics.
Write p5.js sketches in your browser. The easiest way to start creative coding with JavaScript.
Check if your email or phone was in a data breach. Free service by Troy Hunt, essential for security awareness.
Analyze files and URLs for malware. Scans with 70+ antivirus engines and URL/domain blocklists.
Decentralized social network. No ads, no algorithms, community-run servers.
Federated link aggregator. Like Reddit but decentralized, open source, and community-owned.
Static analysis for shell scripts. Finds bugs, pitfalls, and improvements in your bash code.
Find the package that contains a command. Covers major Linux distributions and macOS.
Real-time monitoring of forests worldwide. Track deforestation and forest fires globally.
Real-time visualization of electricity consumption and carbon intensity worldwide.
Free legal research from Free Law Project. Search millions of court opinions and oral arguments.
Track the U.S. Congress. Bills, votes, and congressional activity made accessible.
Track state legislation across all 50 U.S. states. Open data on state politics.
File, track, and share public records requests. Making FOIA accessible to everyone.
Social film discovery. Log, rate, and review films. Find what to watch next.
Curated streaming service and film magazine. Hand-picked cinema from around the world.
The quick and simple editor for cron schedule expressions.
Convert Unix timestamps to human-readable dates and back.
Webpage archiving service. Save snapshots of pages before they change or disappear.
Disposable temporary email. Avoid spam when signing up for services.
Test your internet connection speed. The standard benchmark for bandwidth.
Check if a website is down globally or just for you.
Encode and decode Base64 strings. Simple developer utility.
Encode and decode URLs. Handle special characters in web addresses.
Expose local servers to the internet. Essential for webhook development and demos.
HTTP request and response testing service. Debug your HTTP clients.
Free fake API for testing and prototyping. No signup required.
Generate tables in LaTeX, Markdown, HTML, and more. Visual table editor.
Generate .gitignore files for your projects. Supports hundreds of languages and tools.
Easy file sharing from the command line. Upload with curl, share with a link.
Find your public IP address and location information.
Test SSL/TLS configuration of any website. Industry standard for SSL analysis.
Analyze HTTP security headers of any website. Quick security audit.
Search engine for Internet-connected devices. See what's exposed on the internet. Essential for security researchers.
Free, open-source font library. Over 1,500 font families to use in web and print projects.
Free fonts licensed for commercial use. Also offers a webfont generator for self-hosting.
Visualize algorithms and data structures. Step through sorting, trees, graphs, and more.
Makes your writing bold and clear. Highlights complex sentences and suggests simpler alternatives.
Translation search engine. See how words and phrases are translated in real documents.
The addictive sliding number puzzle game that took the internet by storm. Simple, elegant, endlessly replayable.
Beautiful free images. High-quality photos contributed by photographers worldwide.
Free stock photos and videos. High quality, no attribution required.
Self-publishing platform. Print and distribute your own books worldwide.
Free emotional support. Connect with trained listeners or licensed therapists.
Free online planetarium. View the night sky from anywhere on Earth at any time. Beautiful and educational.
Track satellites, ISS passes, and celestial events. Precise predictions for your location.
Online music studio. Record, collaborate, and produce music entirely in your browser.
See translations in context. Millions of examples from real texts in multiple languages.
Pronunciation dictionary. Native speakers pronounce words in their language.
Search multiple dictionaries at once. Reverse dictionary, thesaurus, and pattern matching.
What if YouTube had actual TV channels? Curated playlists that autoplay like traditional television.
3D shade map of the entire world. See shadows from mountains, buildings, and trees for any date and time.
Practice typing by retyping entire novels. Learn to type faster while reading classic literature.
Markdown for timelines. Write dates and events in plain text, get a beautiful timeline visualization.
Rotten Tomatoes-style ratings for durable products. Find things that last instead of disposable junk.
Personal finance simulator. Model different scenarios for retirement, investments, and life decisions.
Private, open-source investment tracker. Track your portfolio without sending data to third parties.
Meditation and mindfulness app. Guided sessions for stress, sleep, and focus.
Free hosting for Twine interactive fiction. Many mental health and personal story games.
Free language learning. Gamified lessons in 40+ languages with millions of users.
Learn vocabulary in context. Fill-in-the-blank exercises with real sentences.
Kevin MacLeod's royalty-free music. Thousands of tracks for any project.
Royalty-free music for videos and projects. Quality background tracks.
Icon library and toolkit. Thousands of icons for web projects.
Icons for everything. Millions of icons from global creators.
Free vector icons database. Millions of icons in multiple formats.
CSS gradient generator. Create beautiful gradients with code.
CSS easing function generator. Visualize and create animation curves.
3D visualization of our solar system, Earth, and NASA missions. Explore space from your browser.
Create and share shader programs in the browser. Mind-bending procedural graphics in real-time.
Open-source puzzle game engine. Make Sokoban-like games with a simple scripting language.
Tiny game maker for tiny games. Create small narrative experiences with simple pixel art.
Collaborative data visualization platform. JavaScript notebooks for exploring and sharing data insights.
Geography guessing game. Drop into Street View and figure out where in the world you are.
Real-time visualization of global weather conditions. Hypnotic animation of wind, temperature, and more.
Beautiful weather forecasting. Detailed models, radar, and satellite imagery in an elegant interface.
Web accessibility resources. Articles, tools, and training for making the web work for everyone.
Check color contrast accessibility. Real-time WCAG compliance checking for foreground/background pairs.
Knowledge base that works on local Markdown files. Powerful linking, graph view, and extensible plugins.
Stable Diffusion fine-tuned to generate music via spectrograms. AI music generation through images.
Recipe search by ingredients you have. Enter what's in your kitchen, get recipes.
x86 emulator running in the browser. Boot Windows 98, Linux, or FreeDOS without installing anything.
Electronic circuit simulator in the browser. Visualize current flow and experiment with components.
Generate ASCII art from text. Dozens of fonts, preview in real-time.
Backtest and analyze investment portfolios. Monte Carlo simulation and factor analysis.
Task management that scales. Simple to-do lists that grow with your needs.
Simple time tracking. Know where your time goes with one-click timers.
Pomodoro timer for productivity. Focus sessions with breaks built in.
Infinitely nested lists. Organize anything with a simple, powerful outliner.
Free fitness resource. Workouts, programs, and challenges with no ads or fees.
Nutrition tracking with micronutrients. Track what you eat with detailed data.
Interactive planetarium and astronomy calendar. See what's visible tonight.
AI-powered research tool. Find and understand scientific papers.
Search scholarly literature. Papers, theses, and citations.
Free access to research papers. Controversial but used by millions.
Minimalist typing test. Track your speed, practice with custom texts, compete with others.
Astronomical calculations and events. Eclipses, transits, and occultations.
Social network for athletes. Track running, cycling, and more.
Podcast search engine. Search across millions of episodes.
Modern anime and manga tracking. Clean interface, active community.
The Wikipedia of maps. Free, editable map of the world built by volunteers.
Live flight tracking. Watch planes move around the world in real-time with flight details.
Live ship tracking. See vessels moving across the oceans with details on cargo, route, and speed.
Internet leisure radio. Retro-styled streaming radio with vacation vibes and excellent curation.
Run Windows 3.1 in your browser. Complete with Program Manager, File Manager, and classic apps.
Browse 800+ billion web pages saved over time. See how any website looked years ago.
Computational knowledge engine. Ask it math, science, or data questions and get computed answers.
Beautiful, powerful graphing calculator in the browser. Free and used in schools worldwide.
Free repair guides for everything. Teardowns, parts, and tools to fix your own devices.
Smart PNG and JPEG compression. Reduce file size without visible quality loss.
Remove image backgrounds automatically. AI-powered, fast, and surprisingly good.
Free online photo editor that rivals Photoshop. Runs entirely in the browser, supports PSD files.
Spin a 3D globe and listen to radio stations worldwide. Thousands of stations, one elegant interface.
Minimal collaborative whiteboard. No signup required, just share the link and draw together.
Image compression tool by Google. Compare different codecs side-by-side, all processing happens locally.
Collection of free online tools for PDFs, images, videos, and documents. No signup, files deleted after processing.
Essential developer tools: JSON/XML formatters, encoders, validators, and converters. Bookmarkable.
Create beautiful images of your source code. Perfect for sharing snippets on social media or presentations.
Visualize JSON data as interactive graphs. Makes complex nested structures actually understandable.
The best regex tester and debugger. Explains each part of your pattern and tests against multiple flavors.
An independent search engine that favors text-heavy, non-commercial websites. Surfaces the small web that Google ignores.
A free, instant whiteboard for drawing and diagramming. Clean design, works without signup.
Digital library offering free access to books, movies, software, and the Wayback Machine for web history.
Google but for colors. Type a word and get a palette based on image search results.
Search engine for the classic web. Returns results from hand-picked personal and hobbyist websites.
Fast color scheme generator. Press spacebar to generate, lock colors you like, export anywhere.
Virtual whiteboard for sketching hand-drawn like diagrams. Open source, real-time collaboration, end-to-end encrypted.
Free web hosting for static sites in the spirit of GeoCities. Hosts thousands of creative personal websites.
Visual bookmarking for creative research. Build collections, discover connections, no algorithms.
Industrial supply catalog with exceptional UX. Fast search, detailed specs, overnight shipping. A masterclass in e-commerce.