Full-featured photo editor in your browser — opens and saves PSD, XCF, Sketch files. Layers, masks, filters, blend modes. A genuinely free Photoshop replacement that needs no install.
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Full-featured photo editor in your browser — opens and saves PSD, XCF, Sketch files. Layers, masks, filters, blend modes. A genuinely free Photoshop replacement that needs no install.
Collaborative virtual whiteboard with a hand-drawn feel. Open-source Miro/Figma FigJam alternative — real-time collaboration, offline support, and end-to-end encrypted rooms.
A giant toolbox of free file utilities that run in your browser — PDF merge and split, image conversion and background removal, video trimming, OCR, and hundreds of small converters with no signup and no watermarks.
Google's image compression tool — compare formats (WebP, AVIF, MozJPEG) side by side with live quality sliders. All processing is client-side, so images never leave your machine. A must-have for web developers.
Open-source chess server — completely free, no ads, no premium paywalls. Play online against humans or engines, study tactics, analyze your games with Stockfish. The best chess site on the web.
All-in-one workspace combining notes, databases, wikis and project boards. Pages are built from composable blocks, and the free personal plan covers unlimited pages and blocks for individuals.
Task manager with natural-language dates, projects, labels and filters. Syncs across web, mobile and desktop; the free tier handles up to five personal projects with recurring tasks.
Kanban board app where cards move across lists to track work. Drag-and-drop simplicity, checklists, due dates and automation via Butler rules; free tier includes unlimited cards on up to ten boards per workspace.
Project management platform bundling tasks, docs, goals, whiteboards and chat in one app. Highly configurable views (list, board, Gantt, calendar) with a functional free tier for small teams.
Spreadsheet-database hybrid: tables with typed fields, linked records, and views (grid, kanban, calendar, gallery) plus form inputs and automations. Free tier allows unlimited bases with capped records.
Online collaborative whiteboard for workshops, diagrams, sticky-note brainstorms and retrospectives. Infinite canvas, template library, voting and timer facilitation tools; free plan includes three editable boards.
Fast visual workspace for flowcharts, wireframes, mind maps and sticky notes. Opinionated snapping and styling keep diagrams tidy with minimal effort; free tier covers a limited number of boards.
Issue tracker for software teams built around speed: instant search, keyboard-first navigation, cycles and roadmaps. Free tier includes unlimited members with a cap on active issues.
One-click time tracker with projects, tags and reports. Timers sync across web, desktop and mobile; free plan supports unlimited time tracking for up to five users.
Customizable Pomodoro timer in the browser with task lists, estimated pomodoros per task, and daily focus reports. No account required to start a session.
Scheduling tool that publishes your availability as a booking page, syncing with your calendar to prevent double-booking. Free plan covers one event type with unlimited bookings.
Open-source scheduling infrastructure: booking pages, round-robin routing, and workflows, self-hostable or on the free hosted individual plan. An open alternative to Calendly with an API-first design.
Real-time collaborative Markdown editor with presentation mode, book mode and GitHub sync. Popular for meeting notes, documentation drafts and shared study notes; free for personal use.
In-browser Markdown editor that works offline, with live preview, LaTeX math, diagrams and scientific notation, plus sync to Google Drive, Dropbox and GitHub. Open source and free, it keeps documents in local browser storage.
End-to-end encrypted collaborative office suite: rich text, spreadsheets, kanban, forms, whiteboard and code editor. Open source, no account needed for basic use, hosted in Europe.
Bookmark manager with collections, tags, full-text search and a visual card layout. Free tier includes unlimited bookmarks and devices, with paid plans adding permanent copies and AI suggestions.
Form builder that works like a document: type questions as text and Tally turns them into forms. Free tier includes unlimited forms and responses with conditional logic and calculations.
AI-assisted presentation and document builder: describe the content and it generates editable slide decks, docs or simple websites with consistent styling. Free tier includes a credit allowance for AI generation.
OpenAI's conversational AI assistant for writing, analysis, coding help, image generation and web-augmented answers. The free tier includes access to current flagship models with usage limits.
Anthropic's AI assistant, strong at long documents, careful reasoning and code. Supports file uploads, project workspaces and artifacts for generated content; free tier with daily usage limits.
AI answer engine that searches the web and responds with cited sources, combining conversational follow-ups with real-time information. Free tier includes limited advanced-model queries per day.
Community chat platform with text channels, voice rooms, video calls and screen sharing, fully usable in the browser. Free for core features; servers organize communities from gaming to study groups.
Team messaging organized in channels with threads, huddles for quick audio, and extensive app integrations. Free plan keeps 90 days of message history for small teams.
Full-featured web client for Telegram messaging: chats, channels, groups up to hundreds of thousands of members, file sharing up to 2 GB, bots and stickers, no phone app required once linked.
Client for the decentralized Matrix protocol: end-to-end encrypted chats and rooms, bridges to other networks, and self-hostable servers. The web app is free; hosting plans are optional.
Open-source video conferencing with no account and no time limit on the public instance: share a link and talk. Screen sharing, chat, and end-to-end encryption options included.
Browser-based video meetings in a personal room with a fixed URL — guests join without accounts or downloads. Free plan includes one room for meetings up to 45 minutes.
Decentralized social network on the AT Protocol with a Twitter-like feed, custom algorithmic feeds you can choose or build, and domain-based handles. Free and open to all.
Decentralized, open-source social network made of independently run servers that federate via ActivityPub. Chronological feeds, no ads, strong community moderation; mastodon.social is the flagship instance.
Open-source team chat where every message belongs to a topic within a channel, making asynchronous conversations easy to follow. Free cloud tier and fully self-hostable.
Open-source chat platform with servers, channels and voice, built as a privacy-respecting alternative to Discord. Runs entirely in the browser with no telemetry-driven business model.
Spotify's full player in the browser: search, playlists, podcasts, and synced playback across devices via Spotify Connect. The ad-supported free tier streams the complete catalog.
Streaming platform centered on independent and emerging artists: uploads, remixes, DJ sets and podcasts, with comments pinned to the waveform. Free listening with ads; free upload allowance for creators.
Music platform where fans buy directly from artists — streaming before purchase, DRM-free downloads in lossless formats, and the majority of revenue going to musicians and labels.
Free browser DAW and music social network: multitrack recording, virtual instruments, samples, AI-assisted mastering and real-time collaboration, with unlimited cloud projects at no cost.
Collaborative electronic music studio in the browser with modular synths, drum machines and effects routing on a virtual desktop. Free accounts can produce and publish to the community.
Free chiptune sketchpad: compose retro melodies in a piano-roll grid, with the whole song encoded in the shareable URL. No account, open source, works entirely client-side.
AI-powered splitter that separates a song into vocals and instrumental in the browser, plus companion tools for pitch, tempo, cutting and karaoke. Free with generous limits.
Open-source waveform audio editor that runs fully client-side: cut, paste, fade, normalize, EQ and record without uploading files anywhere. No account, no ads, works on any modern browser.
Collaborative database of hundreds of thousands of Creative Commons licensed sounds — field recordings, foley, loops and effects — searchable by tag, license and audio properties.
AI music generator that turns a text prompt into complete songs with vocals, lyrics and instrumentation. Free tier provides daily credits; paid plans add commercial use rights.
Explore live radio worldwide by spinning a 3D globe — thousands of stations streamable by pointing at their city, from Lagos talk radio to Icelandic indie stations. Free, no account.
Calibrated background-noise generators — rain, cafés, white noise variants, soundscapes — each with a ten-band equalizer to shape the sound to your ears and headphones. Core generators are free.
AI voice platform for lifelike text-to-speech, voice cloning and dubbing across dozens of languages. Free tier includes a monthly character allowance for non-commercial use, and it is widely used for audiobook, video and accessibility narration.
Social front-end playground: write HTML, CSS and JavaScript in the browser with live preview, preprocessors and frameworks, then share pens and explore millions of community demos. Free accounts cover public work.
Cloud development environment for full projects: instant Node, React and framework templates, npm dependencies, live collaboration and shareable dev servers. Free tier covers public sandboxes and limited VM credits.
Instant dev environments that boot Node.js inside your browser tab via WebContainers — full npm installs and Vite dev servers with no remote VM. Free for public projects.
Browser IDE and hosting for dozens of languages with an AI agent that scaffolds and edits apps, real-time multiplayer editing, and one-click deployments. Free tier for trying and learning.
Regex sandbox with live matching, a full explanation tree for every token, a debugger that steps through backtracking, and quick reference for PCRE, JavaScript, Python and Go flavors.
Visualizes JSON, YAML, CSV and XML as an interactive node graph so nested structures become readable at a glance. Open-source; free tier handles typical payloads in the browser.
Browser compatibility tables for web platform features — search any CSS property, JavaScript API or HTML element and see support across browsers and versions with usage-share statistics.
Turns source code into beautiful, syntax-highlighted images for tweets, slides and documentation, with configurable themes, fonts, window chrome and export sizes. Free and no account needed.
Minimal code-to-image tool by the Raycast team: paste code, pick a gradient theme and export a crisp PNG or SVG for slides and social posts. Free, no signup.
Instant plain-English translation of cron schedule expressions as you type, with examples and edge-case notes. The de facto reference for double-checking a crontab before deploying it.
Unified, searchable API documentation for hundreds of languages and frameworks in one fast interface, with offline support and fuzzy search. Free and open source, maintained by freeCodeCamp.
Run SQL directly in the browser against SQLite, plus server-side MariaDB, PostgreSQL and MS SQL sandboxes — import CSV, run queries, export results, no installation or signup.
Draw entity-relationship diagrams by writing a simple DSL — tables and refs become a tidy visual schema you can export to SQL, PNG or PDF. Free tier covers up to ten diagrams.
The reference OpenAPI editor: write API specs in YAML with real-time validation, documentation preview and code generation for servers and clients. Free and open source.
Open-source API client in the browser: REST, GraphQL, WebSocket, SSE and MQTT requests with collections, environments and team workspaces. A lightweight alternative to Postman with a free tier.
Decode, inspect and verify JSON Web Tokens in the browser: paste a token to see header and payload claims instantly, check signatures, and browse libraries for every language.
GCHQ's open-source 'cyber Swiss army knife': chain hundreds of operations — base64, hex, compression, hashing, encryption, parsing — into recipes that transform data entirely client-side.
Community platform for writing and sharing WebGL fragment shaders: live-code GLSL in the browser and explore thousands of procedural graphics, raymarching scenes and audio-reactive experiments.
Google's page performance analyzer: enter a URL to get lab Lighthouse scores plus real-user Core Web Vitals field data, with prioritized suggestions for improving load and interactivity.
Reactive JavaScript notebooks for data exploration and visualization — cells re-run automatically as values change, with D3 and Plot built in. Free tier for public notebooks.
Visual Studio Code running entirely in the browser at vscode.dev: open local folders via the File System Access API or GitHub repos, with extensions, themes and settings sync. Free.
Official playground for Mermaid: write flowcharts, sequence diagrams, Gantt charts and ER diagrams as text and see them render live, with SVG/PNG export and shareable links. Open source.
Instantly get a unique URL that captures and displays every HTTP request sent to it — headers, body, query strings — for debugging webhooks and callbacks. Free without signup.
Smart lossy compression for PNG, JPEG, WebP and AVIF images — typically 50-80% smaller with no visible quality loss. Free for batches up to 20 images at 5 MB each.
Compare two texts, images, PDFs or spreadsheets side by side with highlighted differences. The text diff is free without an account; handy for contracts, code and document revisions.
The world's largest code hosting platform: Git repositories, pull requests, issues, Actions CI/CD, Codespaces and project boards. Free plan includes unlimited public and private repositories.
The hub of open machine learning: hundreds of thousands of models, datasets and browser-runnable Spaces demos, with free hosting for public repositories and community discussion.
Open-source backend platform: hosted Postgres with instant APIs, authentication, storage, realtime subscriptions and edge functions. Free tier includes two projects for hobby apps, making it a popular open alternative to Firebase for shipping side projects quickly.
Frontend cloud for deploying web apps from a Git push — preview deployments per pull request, edge network, serverless functions and first-party Next.js support. Generous free hobby tier.
Platform for deploying static sites and web apps from Git with build pipelines, serverless functions, forms and edge redirects. Free tier suits personal projects and prototypes.
Collaborative interface design tool in the browser: vector editing, components, prototyping, developer handoff and FigJam whiteboards, with multiplayer editing at its core. Free tier for individual files and small teams.
Drag-and-drop design platform with millions of templates for social posts, presentations, posters, videos and documents. The free tier includes a large asset library and is enough for everyday graphics.
Open-source design and prototyping platform using SVG and open web standards — components, auto-layout via flexbox and grid concepts, and self-hosting. Free with no editor limits.
Browser photo editor family: Pixlr X for quick edits, Pixlr E for layer-based editing close to desktop tools, plus AI tools for background removal and generative fill. Free tier with ads.
Instant collaborative whiteboard with a deliberately simple toolset — draw, connect, share a multiplayer room from the URL. Open-source SDK powers canvases in many other products. Free, no account.
Free diagram editor for flowcharts, network diagrams, UML and org charts. Saves directly to Google Drive, OneDrive, GitHub or local files — no account with the tool itself, fully free.
Fast color palette generator: press spacebar to cycle palettes, lock colors you like, check contrast for accessibility and export to every common format. Free core features, no account needed.
Generates unique SVG design assets — blobs, waves, gradients, low-poly grids, stacked peaks — with randomize-and-tweak controls and clean SVG or PNG export. Free web app.
Web GUI for SVGO: paste or drop an SVG and interactively toggle optimizations while watching file size shrink and the preview stay intact. Client-side, free, open source.
Vector graphics editor built specifically for SVG: a clean Illustrator-like interface whose file format is the SVG itself, with direct code inspection. Browser version with free trial tier and affordable license.
Free pixel art editor and community: layers, animation frames, custom palettes and a gallery where artists share sprites and drawings. Works in the browser, no install.
Open-source editor for animated sprites and pixel art: onion skinning, frame management, live animation preview and export to GIF or sprite sheets. Free, runs in the browser.
Font pairing generator that uses machine learning to suggest Google Font combinations — lock the fonts you like and regenerate the rest until the pairing works. Free, no account.
Visual type scale calculator: pick a base size and ratio (major third, golden ratio) and preview a harmonious heading hierarchy, then copy the CSS. Free tool for typographic systems.
Curated gallery of four-color palettes submitted by designers and ranked by community likes — browse by mood or trend and copy hex codes in one click. Free.
Instantly wraps a screenshot in a clean browser mockup with configurable backgrounds, padding and shadows — ready for landing pages, tweets and portfolio shots. Free core features.
Open-source library of customizable flat illustrations — pick a theme color and every SVG recolors to match your brand. Free for commercial use without attribution.
Vector editor in the browser from the maker of Photopea: opens and saves AI, PDF and SVG files with pen tools, boolean operations, gradients and text on path. Free with ads.
AI image generator notably strong at rendering legible text inside images — logos, posters, typography-driven designs — with style controls and a free daily credit allowance.
Gamified language learning across 40+ languages: bite-sized lessons, streaks, leagues and spaced repetition. The free tier includes the full course content with ads and limited hearts.
Free world-class courses from arithmetic to college-level math, science, economics and humanities: video lessons, mastery-based practice exercises and progress tracking, with no ads and no paywall.
Online courses and degrees from universities and companies — Stanford, Yale, Google, IBM. Most courses can be audited free (videos and readings); certificates and graded work are paid.
Flashcard platform with hundreds of millions of user-created study sets across languages, science, history and test prep, plus practice tests, matching games and learn mode. Free tier covers creating and studying sets with ads.
Web companion to Anki, the reference spaced-repetition flashcard system: review your decks from any browser and sync progress across desktop and mobile. A free account syncs seamlessly with the open-source desktop app and its thousands of community shared decks.
Minimalist typing test with live WPM, accuracy and consistency stats, dozens of modes and themes, and detailed progress history. Open source, free, no account required to practice.
Adaptive touch-typing tutor that generates practice words targeting your weakest keys, gradually unlocking the alphabet as your speed and accuracy improve. Free with optional account.
Nonprofit coding curriculum with thousands of hours of interactive lessons and projects — web development, JavaScript, Python, data science — plus verified certifications, all completely free.
Interactive coding courses where you write real code in the browser from lesson one — Python, JavaScript, SQL, web development and more. Free tier includes basic courses; career paths are paid.
Free open-source full-stack curriculum that teaches with real tools from day one — Git, the command line, deployed projects — curating the best resources into a coherent path with an active community.
Free online graphing calculator: plot functions, sliders animate parameters, tables, regressions and inequalities render instantly. The standard classroom graphing tool, no account needed.
Interactive mathematics suite covering dynamic geometry, algebra, spreadsheets, probability and 3D graphing, with a huge library of teacher-made classroom activities. Free for everyone and used in schools worldwide, from middle-school geometry proofs through university-level calculus.
Computational knowledge engine: solves equations, computes integrals, converts units, and answers factual queries across math, science, finance and everyday life. Free for standard queries; step-by-step solutions are paid.
University of Colorado's free interactive science and math simulations — circuits, waves, gravity, chemistry reactions — used in classrooms worldwide, translated into dozens of languages.
MIT's visual programming environment for kids: snap code blocks together to create games, animations and stories, then share them with a community of millions of young creators. Completely free.
Free coding practice across 65+ language tracks with community code review from volunteer mentors — solve exercises locally or in the browser and get personal feedback. Nonprofit, no ads.
The standard platform for coding interview preparation: thousands of algorithm and data structure problems with an in-browser judge, discussion solutions and company-tagged question lists. Free tier covers most problems.
Planetarium in the browser: a realistic sky map for any time and location showing stars, planets, constellations and deep-sky objects, based on the open-source Stellarium engine. Free.
Google's AI research assistant grounded in your own documents: upload sources and ask questions with citations, generate study guides, or create podcast-style audio overviews. Free with a Google account.
Learn CSS flexbox by writing real CSS to guide a frog to its lily pad across 24 levels — the canonical playful introduction to justify-content, align-items and friends. Free.
The largest chess platform: play online at any level, solve daily puzzles, take interactive lessons and follow major tournaments. Free tier includes unlimited games with limited puzzles and lessons.
Free multiplayer drawing and guessing game — one player sketches a word, everyone else races to guess it in chat. Private rooms with custom word lists make it a video-call staple.
The telephone game with drawings: players alternate writing prompts and drawing them, producing gloriously distorted chains revealed as an animated slideshow. Free party game for calls and streams.
Official free web version of the hit word-association board game: spymasters give one-word clues to help teammates find their agents. Create a room and share the link to play remotely.
Play 1000+ licensed board games online in the browser — Carcassonne, Wingspan, Azul, 7 Wonders — in real time or turn-based mode. Free accounts join any game; premium hosts exclusive titles.
The classic sliding-tile puzzle by Gabriele Cirulli: merge matching numbers to reach the 2048 tile. Open source, free, and still dangerously moreish a decade on.
The daily five-letter word puzzle that became a global ritual: six guesses, color-coded feedback, one puzzle per day shared by everyone. Free on the New York Times games site.
Vocabulary and trivia quiz where every correct answer funds rice donations through the UN World Food Programme — learn while ad revenue feeds people. Free, run by a humanitarian organization.
A falling-sand physics sandbox: paint elements — sand, water, fire, plants, gunpowder — and watch them interact in mesmerizing cellular-automata simulations. Free, open source, community uploads.
The legendary incremental game about an AI making paperclips — starting with one click and ending with the heat death of the universe. A sly lesson in optimization and existential risk, free in the browser.
Orteil's genre-defining idle game: click a cookie, buy grandmas and factories, and watch production numbers spiral into absurdity across prestige resets. Free browser version, still updated.
Faithful competitive Minesweeper with world rankings, daily challenges, custom board sizes and replay analysis of your solving efficiency. Free to play in the browser, with active tournaments and a large international competitive community.
Free multiplayer stacker in the browser: ranked ladder, 40-line sprints and custom rooms, with the guideline handling and speed that competitive block-stacking players expect. Supporter perks are cosmetic; the full game is free.
Neal Agarwal's collection of interactive web toys and games — The Deep Sea, Absurd Trolley Problems, Infinite Craft, Password Game — each a small masterpiece of playful web design. Free.
Battery of cognitive mini-tests — reaction time, number memory, verbal memory, chimp test — with percentile rankings against millions of users. Free, no account needed to play.
Look through a stranger's window somewhere in the world: user-submitted ten-minute videos of window views from Tokyo apartments to Norwegian fjords. A calming pandemic-born classic, free to watch.
Open marketplace for indie games with hundreds of thousands of browser-playable titles, experimental jams, and pay-what-you-want pricing that favors creators. Free to browse and play countless games.
Dropped somewhere in the world on Street View, you deduce your location from vegetation, signage and road markings. Competitive duels and world leagues; requires a paid subscription for unlimited play.
Collaborative online video editor with subtitle generation, resizing for every platform, meme templates and AI tools. Free tier exports with watermark limits for videos up to a set length.
Microsoft's browser video editor: multitrack timeline, templates, stock media, auto-captions and direct export up to 1080p free without watermarks. Integrated with Windows and Microsoft 365 accounts.
AI video creation suite: text-to-video and image-to-video generation, inpainting, green screen without a green screen, and motion tracking. Free tier includes one-time credits to try generation tools.
Browser-based live streaming studio: bring guests on screen via a link, brand your stream with overlays, and broadcast to YouTube, LinkedIn and Facebook simultaneously. Free tier with StreamYard branding.
Record your screen, camera and voice in one click and share the video as a link the moment you stop recording. Free tier includes 25 videos of up to five minutes each.
The Swiss army knife for GIFs: make, resize, crop, optimize, reverse and add text to animated GIFs, plus video-to-GIF and WebP/APNG conversion. Free, no account, no watermark.
Record your screen straight to an animated GIF entirely in the browser — no install, no upload, everything processed client-side. Open source and free, ideal for quick bug reports.
Watch YouTube and other media in perfect sync with friends in a shared room with chat — playback controls are synchronized for everyone. Free rooms, no account required to join.
Library of millions of high-resolution photos contributed by photographers, free to download and use for most commercial and personal projects under the Unsplash license.
Free stock photos and videos from a large contributor community, with a permissive license covering commercial use without attribution. The strong video and footage selection distinguishes it from photo-only libraries.
Long-running photo community and hosting platform with groups, albums and a deep archive including millions of Creative Commons and public-domain images. Free accounts store up to 1000 photos.
Removes the background from any photo in seconds using AI — upload an image and download a clean cutout with transparent background. Free for standard-resolution results.
Erase unwanted objects, people, text or defects from photos by brushing over them — AI inpainting fills the gap convincingly. Free for standard resolution, no account needed.
Suite of browser tools for audio, video and PDF: cut, merge and convert files, record from webcam or microphone, all with a clean interface and generous free limits.
Completely free PDF toolbox from a German company: merge, split, compress, convert, sign, OCR and edit PDFs with no file-size caps, watermarks or account requirements.
Popular PDF workspace covering merge, split, compress, convert to and from Office formats, sign and watermark, with batch processing. Free tier handles everyday documents; premium lifts size limits.
High-quality file converter supporting 200+ formats across documents, images, audio, video and ebooks, with fine-grained conversion options and an API. Free tier includes daily conversion minutes.
Send large files as a simple link — upload, add an email or copy the URL, done. Free transfers up to 2 GB with expiring links; paid tiers add size, storage and password options.
AirDrop for every platform: devices on the same network discover each other in the browser and exchange files or messages directly, with optional paired connections across networks. Open source and free.
Analyze suspicious files, URLs, domains and IPs with 70+ antivirus engines and scanners simultaneously, then explore relationships between threats. Free for standard lookups, and widely relied on by security teams, IT admins and cautious downloaders.
Check whether your email address or passwords have appeared in known data breaches, and subscribe to alerts for future leaks. Free public service run by security researcher Troy Hunt.
Open-source password manager with end-to-end encryption: unlimited passwords across unlimited devices on the free tier, plus passkeys, secure notes and TOTP support. Web vault, extensions and apps.
Netflix's dead-simple speed test: open the page and your download speed appears — no ads, no upsells. Expand for upload, latency and loaded-connection measurements. Free.
Visual time zone converter: stack cities as parallel timelines and slide across hours to find meeting slots that work for everyone. Free for a handful of locations.
Machine translation renowned for natural, nuanced output across 30+ languages, with document translation, formality control and a glossary. Free tier translates generous amounts of text.
Free QR code generator with logo embedding, custom colors and shapes, and high-resolution vector export (SVG, PDF, EPS) — no account, no expiring codes, free for commercial use.
Over 3000 purpose-built calculators — mortgage amortization, concrete volume, drug dosage, orbital mechanics — each explaining its formula and assumptions, written and reviewed by subject-matter experts. Free with no account.
Interactive weather visualization: animated wind, rain, waves and pressure layers on a world map, comparing multiple forecast models (ECMWF, GFS, ICON). Free core features; loved by pilots, sailors and surfers.
Y Combinator's link aggregator for technology and startups: a deliberately plain interface where ranking rewards intellectual curiosity and the comment threads often outvalue the articles. Free.
RSS reader for following websites, blogs and publications in organized feeds with a clean reading interface, keyboard navigation and mobile sync. Free tier follows up to 100 sources.
Read-it-later service that strips articles to clean, adjustable text and syncs them for offline reading, with highlights, notes and speed-reading. Free tier covers core saving and reading.
The free encyclopedia anyone can edit: tens of millions of articles across 300+ languages, maintained by a volunteer community and the nonprofit Wikimedia Foundation. No ads, no paywall.
Nonprofit digital library preserving the web (Wayback Machine), plus millions of books, audio recordings, films and software — including emulated vintage games playable in the browser. Free.
The oldest digital library: over 75,000 public-domain ebooks — the classics of world literature — free to read online or download in EPUB and Kindle formats, no registration required.
Volunteer-produced editions of public-domain classics with professional typography, modern formatting, careful proofreading and lovely covers — free ebooks that feel like commercial releases. New titles are released continuously and everything downloads free in every major format.
An open, editable catalog aiming for a page for every book ever published, with millions of titles borrowable digitally through the Internet Archive's lending program. Free.
Reading tracker and recommendation engine built around moods, pacing and content warnings rather than star ratings alone — a community-favorite Goodreads alternative. Free core features.
Publishing platform for newsletters and podcasts where writers own their subscriber lists — read thousands of free publications or subscribe to paid ones, with a reader app and comments.
Free accounting and invoicing software for small businesses and freelancers: unlimited invoices, income and expense tracking, and financial reports, monetized through optional payment processing and payroll.
International money transfers at the mid-market exchange rate with transparent fees, plus multi-currency accounts with local bank details in major currencies. Account is free; you pay per transfer.
Tracks shared expenses and IOUs with roommates, trips and groups: log who paid, split evenly or unevenly, and settle the simplified net balance. Free tier covers the essentials.
Charting platform and social network for traders: professional-grade charts for stocks, crypto and forex, hundreds of indicators, the Pine Script language, and shared trade ideas. Free tier with ads and indicator limits.
Create a professional PDF invoice in a minute with no account: fill in the fields, add a logo and line items, download or email it. Free and beloved by freelancers.
Sell digital products — ebooks, courses, software, memberships — with a link and no upfront cost: Gumroad handles payments, EU VAT and delivery for a percentage of each sale.
Creator support page for one-off tips, memberships, commissions and a small shop — free to set up, with zero platform fee on donations. A friendly 'buy me a coffee' storefront.
Schedule and publish posts across social networks from one dashboard, with a visual queue, best-time suggestions and basic analytics. Free plan connects three channels with scheduled posts per channel, enough for solo creators and small brands.
CRM platform with genuinely free core tools: contact management, deal pipelines, email marketing, forms and live chat, expanding into paid marketing, sales and service hubs as teams grow.
Enter any two places on Earth and see every way to travel between them — flights, trains, buses, ferries, driving — with estimated costs, durations and booking links. Free.
Live map of global air traffic: click any aircraft for route, altitude, speed and aircraft details, or replay past flights. Free tier covers real-time tracking with ads.
Collaborative trip planner: build day-by-day itineraries on a map with friends, import reservations from email, track budgets and export offline. Free core planning features cover full itineraries on web and mobile, before and during the trip.
The free, editable map of the world built by millions of contributors — the open-data foundation behind countless apps, with browsable maps and community editing tools on the site itself.
Amazon price tracker showing full price history charts for any product and emailing you when the price drops below your target. Free, funded by affiliate links.
Gear list builder for backpackers and travelers: itemize your pack with weights, visualize base weight in charts, and share the list publicly. Free and open source — a hiking community standard.
Crowd-sourced atlas of the world's hidden wonders — obscure museums, strange monuments, natural oddities — with detailed entries and maps for building unusual itineraries. Free to explore.
Crowd-sourced database comparing cost of living, rent, groceries, safety and quality of life between cities worldwide — useful for relocation research and travel budgeting. Free access.
Calorie and macro tracker with one of the largest food databases available, barcode scanning on mobile and exercise logging. Free tier covers core diary tracking with ads.
Nutrition tracker focused on accuracy: logs up to 84 micronutrients from lab-verified food data, not just calories and macros. Free tier includes full nutrient tracking with ads.
The social network for athletes: track runs and rides with GPS, compare segment times, join clubs and challenges, and follow friends' activities. Free tier logs unlimited activities.
Nonprofit fitness resource offering thousands of free illustrated workouts requiring no equipment, plus structured multi-week training programs, meal plans and daily challenges — every page printable, ad-free and donation-supported.
Click a muscle on an interactive body map to see exercises targeting it, each with short video demonstrations and form cues for barbell, dumbbell, bodyweight and machine variants. Free.
Free training analytics for cyclists and runners: syncs with Strava and Garmin to chart fitness, fatigue and form, analyze power and heart-rate data, and plan structured workouts. Donation-supported.
Programmable weightlifting tracker: build or import progressive programs in a simple scripting language, track sets in the gym, and let progression rules auto-adjust weights. Open source and free.
Minimalist recipe site with no ads, no trackers and no life stories before the ingredients — just clean, community-contributed recipes that load instantly. Open source.
Paste any recipe URL and get only the ingredients and steps — no ads, popups or thousand-word preambles. Free for standard use, with step-by-step cook mode.
Recipe search by what's already in your kitchen: tick the ingredients you have and it surfaces recipes you can make right now, reducing food waste and grocery runs. Free.
Automatic meal planner: set calorie targets, diet style and budget, and it generates complete daily meal plans with recipes and grocery lists. Free tier plans one day at a time.
Open database of food products from around the world: scan or search any barcode for ingredients, Nutri-Score, additives and eco-impact, built by volunteers as a Wikipedia for food. Free.
The reference directory for vegan and vegetarian dining: find plant-based restaurants and health food stores in 180+ countries with community reviews and photos. Free to browse.