Open-source browser software
6107 open-source libraries, tools and applications tagged browser, ranked by how closely browser is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
6107 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| freeCodeCamp freeCodeCamp is an open‑source, web‑based learning platform that offers a full‑stack developer curriculum and interactive coding challenges… | 77 | 457328 | active |
| nilbuild/developer-roadmap roadmap.sh is an interactive web service that provides visual roadmaps, guides, and resources to help developers plan and grow their career… | 66 | 367928 | active |
| react/react React is a JavaScript library for building user interfaces with reusable components. It enables declarative, component‑based development fo… | 96 | 250735 | stable |
| deepseek-ai/deepseek-harness DeepSeek Harness is an open‑source framework for building AI agents using a fully pluggable architecture. It provides a CLI and web UI to c… | 66 | 247609 | active |
| Visual Studio Code Visual Studio Code (Code - OSS) is Microsoft's open-source, Electron-based code editor combining editing, navigation, debugging, and a rich… | 95 | 193797 | stable |
| HelloGitHub HelloGitHub is a web service that curates and shares interesting, entry‑level open‑source projects from GitHub. It publishes monthly newsle… | 98 | 180299 | active |
| Bootstrap Bootstrap is a popular open‑source front‑end toolkit that provides a collection of CSS, HTML, and JavaScript components for building respon… | 73 | 174948 | active |
| DietrichGebert/ponytail Ponytail is a JavaScript library that provides a ruleset for AI coding agents to write the minimal amount of code needed. It integrates wit… | 81 | 166288 | active |
| Next.js Next.js is a React-based framework for building full‑stack web applications. It provides server‑side rendering, static site generation, rou… | 95 | 143109 | active |
| Excalidraw Excalidraw is an open‑source virtual whiteboard that lets you draw hand‑drawn style diagrams, wireframes, and sketches. It runs in the brow… | 79 | 133740 | active |
| 30 seconds of code 30 seconds of code is a curated collection of short coding articles and code snippets across multiple programming languages. It provides a … | 69 | 129148 | active |
| React Native React Native is an open‑source framework that lets you build native mobile applications using React and JavaScript. It renders React primit… | 91 | 126729 | active |
| shadcn/ui shadcn/ui is an open‑source collection of beautifully designed, accessible UI components built with React, Tailwind CSS and Radix UI. It pr… | 91 | 124711 | active |
| Godot Engine Godot Engine is a free, open‑source, cross‑platform 2D and 3D game engine written in C++. It provides a full editor, scripting languages, a… | 97 | 118407 | stable |
| Browser Use Browser Use is a Python library that lets large language models control a web browser just like a human, performing clicks, typing, and for… | 84 | 117325 | active |
| three.js Three.js is a JavaScript library that simplifies creating and displaying animated 3D graphics in a web browser. It provides abstractions fo… | 94 | 116214 | active |
| three.js three.js is a lightweight, general-purpose JavaScript 3D library for the web, providing scene graphs, cameras, materials, lights, loaders, … | 94 | 116214 | stable |
| D3 D3.js is a JavaScript library for creating dynamic, data‑driven visualizations using web standards like SVG, Canvas, and HTML. It provides … | 57 | 113727 | active |
| microsoft/TypeScript TypeScript is a superset of JavaScript that adds optional static types and compiles to clean JavaScript. It provides a compiler and languag… | 91 | 111245 | active |
| axios Axios is a promise‑based HTTP client for the browser and Node.js. It provides a simple API, request/response interceptors, and full TypeScr… | 97 | 109349 | active |
| ruanyf/weekly A GitHub repository that publishes a weekly technology newsletter in markdown format. It serves as a curated collection of articles, resour… | 75 | 104767 | active |
| Paperclip Paperclip is an open‑source web application that lets teams orchestrate, monitor, and budget AI agents as if they were employees. It provid… | 83 | 103680 | active |
| thedotmack/claude-mem Claude-Mem (Grok Mem) is an open‑source memory engine that captures, compresses, and stores observations from AI agents across sessions. It… | 82 | 101435 | active |
| Angular Angular is a full-featured, opinionated web framework for building scalable mobile and desktop web applications using TypeScript. It provid… | 94 | 101014 | active |
| mui/material-ui Material UI is an open‑source React component library that implements Google's Material Design. It provides a comprehensive set of pre‑buil… | 95 | 99233 | active |
| Playwright Playwright is an open‑source framework for web automation and end‑to‑end testing. It provides a single API to control Chromium, Firefox, an… | 96 | 96681 | active |
| puppeteer/puppeteer Puppeteer is a JavaScript/TypeScript library that provides a high‑level API to control Chrome or Firefox via the DevTools Protocol or WebDr… | 95 | 95714 | active |
| LocalSend LocalSend is a free, open‑source cross‑platform app that lets you securely share files and messages with nearby devices over a local networ… | 97 | 95060 | active |
| Storybook Storybook is an open‑source frontend workshop for building, documenting, and testing UI components in isolation. It runs as a Node.js appli… | 92 | 91172 | active |
| OpenCut OpenCut is a free, open-source video editor for web, desktop, and mobile, positioned as an open alternative to CapCut. It provides a timeli… | 72 | 90555 | active |
| Mermaid Mermaid is a JavaScript/TypeScript library that renders diagrams and flowcharts from simple Markdown-like text definitions. It can be used … | 94 | 90537 | active |
| vue-element-admin Vue Element Admin is a production‑ready admin dashboard template built with Vue 2 and Element UI. It provides a full set of UI components, … | 23 | 90176 | active |
| NextChat NextChat is an open‑source, cross‑platform AI chat assistant that lets users interact with many LLMs (GPT‑5, Claude, Gemini, etc.) without … | 73 | 88834 | active |
| koala73/worldmonitor World Monitor is an open‑source, real‑time global intelligence dashboard that aggregates news, geopolitical, maritime, aviation, and cyber … | 84 | 88743 | active |
| sveltejs/svelte Svelte is a compiler‑based UI framework that turns declarative components written in HTML, CSS and JavaScript into highly optimized JavaScr… | 93 | 88236 | active |
| tt-a1i/archify Archify is a Node.js library that converts typed JSON representations of system architecture into self‑contained interactive HTML/SVG diagr… | 82 | 84914 | active |
| Vite Vite is a fast, opinionated build tool and development server for modern web projects. It provides instant server start, lightning‑fast HMR… | 94 | 83099 | active |
| animate-css/animate.css Animate.css is a cross-browser CSS library providing dozens of ready-made animation classes like fades, bounces, and attention seekers. Dev… | 23 | 82851 | stable |
| Hoppscotch Hoppscotch is an open‑source API development ecosystem offering a web‑based client, desktop app and CLI for building, testing and debugging… | 98 | 80634 | active |
| Font Awesome Font Awesome is a widely used icon toolkit providing SVG, font, and CSS assets. It offers thousands of icons that can be integrated into we… | 84 | 76960 | active |
| thedaviddias/Front-End-Checklist Front-End Checklist is an open-source web application that provides a comprehensive set of best‑practice rules for modern front‑end develop… | 80 | 74358 | active |
| juliangarnier/anime Anime.js is a fast, lightweight JavaScript animation library that works with CSS, SVG, DOM attributes, and JavaScript objects. It provides … | 89 | 73696 | active |
| toeverything/AFFiNE AFFiNE is an open-source, local-first knowledge base workspace that merges documents, whiteboards, and databases into a single block-based … | 96 | 73138 | active |
| hakimel/reveal.js reveal.js is an open‑source HTML presentation framework that lets you build interactive slide decks using standard web technologies. It pro… | 88 | 72433 | active |
| uBlock Origin uBlock Origin is a free, open‑source browser extension that blocks ads, trackers, and malicious scripts. It works on Chromium‑based browser… | 94 | 68563 | active |
| uBlock Origin uBlock Origin is an efficient, wide-spectrum content blocker browser extension for Chromium-based browsers and Firefox. It blocks ads, trac… | 94 | 68563 | active |
| Chart.js Chart.js is an open‑source JavaScript library for creating simple, flexible HTML5 charts using the canvas element. It provides a wide range… | 75 | 67730 | active |
| Apache ECharts Apache ECharts is a powerful, interactive charting and data visualization library for the browser written in TypeScript. It provides a decl… | 80 | 67459 | active |
| Apache ECharts Apache ECharts is a free, open-source JavaScript charting and data visualization library for the browser, built on the ZRender canvas engin… | 80 | 67459 | stable |
| AnythingLLM AnythingLLM is an all‑in‑one self‑hosted AI application that lets you chat with your documents, run AI agents, and use local LLMs. It provi… | 96 | 66696 | active |
| HyperFrames HyperFrames is an open‑source TypeScript framework that converts HTML, CSS, and media into deterministic MP4 videos. It can be used via a C… | 79 | 66034 | active |
| nocodb/nocodb NocoDB is a self‑hostable, open‑source platform that turns any relational database into a smart spreadsheet interface. It provides automati… | 96 | 65072 | active |
| Socket.IO Socket.IO is a TypeScript‑based library that provides bidirectional, low‑latency communication between servers and clients. It automaticall… | 97 | 63208 | active |
| Astro Astro is a modern web framework focused on building fast, content‑driven sites. It combines static‑site generation with server‑side renderi… | 93 | 63018 | active |
| reduxjs/redux Redux is a tiny (2kB) JavaScript library for predictable, centralized global state management using a unidirectional data flow with actions… | 66 | 61489 | stable |
| Lodash Lodash is a modern JavaScript utility library that provides a wide range of modular functions for working with arrays, objects, strings, an… | 88 | 61287 | active |
| Alishahryar1/free-claude-code Free Claude Code is an open‑source Python CLI and library that lets you access multiple LLM coding agents (Claude, Codex, Pi, OpenCode, etc… | 79 | 61286 | active |
| Plane Plane is an open‑source project management platform that lets teams track issues, run cycles, and manage roadmaps. It provides a modern web… | 97 | 61193 | active |
| Nuxt Nuxt is an open‑source full‑stack framework built on Vue.js that enables server‑side rendering, static site generation, and hybrid renderin… | 94 | 60893 | active |
| Remotion Remotion is a React‑based library for programmatically creating, rendering, and editing videos and motion graphics. It provides a full suit… | 93 | 60424 | active |
| Penpot Penpot is an open‑source, web‑based design platform for creating UI mockups, wireframes and prototypes. It can be self‑hosted, giving teams… | 97 | 60343 | active |
| Penpot Penpot is an open-source, browser-based design and prototyping platform for product teams, built with Clojure/ClojureScript. It offers UI d… | 97 | 60343 | stable |
| adam-p/markdown-here Markdown Here is a browser and email-client extension (Chrome, Firefox, Opera, Safari, Thunderbird, Postbox) that lets users write email in… | 48 | 60265 | active |
| jquery/jquery jQuery is a fast, small, and feature‑rich JavaScript library for DOM traversal, manipulation, event handling, animation, and Ajax. It provi… | 74 | 59864 | active |
| pmndrs/zustand Zustand is a small, fast, and scalable state management library for React based on simplified flux principles, with a hook-based API and no… | 90 | 58737 | stable |
| HTML5 Boilerplate HTML5 Boilerplate is a professional front‑end template that provides a solid foundation of HTML, CSS, and JavaScript for building fast, rob… | 67 | 57648 | active |
| remix-run/react-router React Router is a TypeScript library that provides declarative routing for React applications. It can be used as a full framework with SSR … | 92 | 56586 | active |
| Gatsby Gatsby is an open‑source React‑based framework for building fast, secure, and scalable websites and web apps. It combines static‑site gener… | 86 | 55937 | active |
| ImHex ImHex is a free, open-source hex editor built for reverse engineers, programmers, and security researchers. It offers binary analysis featu… | 83 | 54966 | active |
| Vue Core Vue.js is a progressive, incrementally-adoptable JavaScript framework for building web user interfaces, written in TypeScript. It features … | 100 | 54658 | stable |
| Element UI Element is a Vue.js 2.x UI component library that provides a comprehensive set of ready‑made UI elements for building web applications. It … | 23 | 54023 | active |
| bannedbook/fanqiang Fanqiang is a comprehensive repository of proxy tools, tutorials, and configuration scripts for bypassing internet censorship. It provides … | 65 | 53980 | active |
| PDF.js PDF.js is an open‑source JavaScript library that parses and renders PDF files directly in the browser using HTML5. It provides a full‑featu… | 95 | 53910 | active |
| ChromeDevTools/chrome-devtools-mcp chrome-devtools-mcp is a TypeScript library and CLI that runs a Model-Context-Protocol (MCP) server, exposing Chrome DevTools capabilities … | 81 | 53743 | active |
| Ionic Framework Ionic is an open‑source UI toolkit for building high‑quality mobile, desktop, and progressive web apps using web technologies. It provides … | 95 | 52702 | active |
| justjavac/wechat-miniapp-radar MiniProgram Radar is an AI‑powered web application that helps teams evaluate, compare, and select technologies for WeChat mini‑apps. It pro… | 76 | 51176 | active |
| Cypress Cypress is a fast, easy-to-use testing framework for end‑to‑end and component testing of web applications. It runs directly in the browser … | 98 | 51046 | active |
| Semantic UI Semantic UI is a JavaScript‑based UI component library that provides a large collection of styled elements and behaviors. It emphasizes nat… | 23 | 51021 | active |
| chenglou/pretext Pretext is a pure JavaScript/TypeScript library that measures and lays out multiline text without touching the DOM. It works with Canvas, S… | 60 | 50754 | active |
| tldraw tldraw is a TypeScript SDK for building infinite canvas applications in React. It provides drawing, diagramming, and real‑time multiplayer … | 93 | 50683 | active |
| tldraw tldraw is a React SDK for building infinite canvas applications, providing a feature-complete whiteboard engine with drawing, diagramming, … | 93 | 50683 | stable |
| TanStack/query TanStack Query is a TypeScript/JavaScript library for asynchronous state management and server‑state utilities. It provides declarative API… | 95 | 50412 | active |
| Bulma Bulma is a modern, pure‑CSS framework built on Flexbox that provides ready‑to‑use responsive UI components. It ships as a single CSS file (… | 69 | 50038 | active |
| htmx htmx is a lightweight JavaScript library that lets you perform AJAX, CSS transitions, WebSockets, and Server‑Sent Events directly from HTML… | 96 | 49542 | active |
| Algorithm Visualizer Algorithm Visualizer is an interactive web application that animates algorithms directly from source code. It provides a visual learning en… | 32 | 48883 | active |
| Slidev Slidev is a markdown‑based presentation tool that builds interactive slides using Vite and Vue. It provides a CLI, integrated editor, themi… | 92 | 48867 | active |
| React Bits React Bits is an open‑source collection of over 165 animated, interactive React components. It provides ready‑to‑use UI elements, text anim… | 68 | 48860 | active |
| bilawalsidhu/gods-eye-view God's Eye View is an open‑source, browser‑based spy‑satellite simulator that visualizes real‑world geospatial data on a photorealistic 3D g… | 80 | 48786 | active |
| iamkun/dayjs Day.js is a minimalist JavaScript library for parsing, validating, manipulating, and displaying dates and times. It offers a Moment.js‑comp… | 94 | 48661 | active |
| pixijs/pixijs PixiJS is a fast, open-source 2D rendering engine for the web built on WebGL and WebGPU, providing a scene graph, asset loading, filters, m… | 96 | 48223 | stable |
| Discourse Discourse is an open‑source, Ruby‑on‑Rails based community platform for discussion forums, Q&A, and real‑time chat. It can be self‑hosted o… | 83 | 47962 | active |
| abhigyanpatwari/GitNexus GitNexus is a client‑side code intelligence engine that builds an interactive knowledge graph of any codebase directly in the browser. It a… | 84 | 47734 | active |
| Quill Quill is a modern WYSIWYG rich text editor library for the web, built for compatibility and extensibility with a JSON-based Delta document … | 34 | 47364 | stable |
| copyparty Copyparty is a portable, Python‑based file server that supports resumable uploads, deduplication, and a wide range of protocols. It provide… | 94 | 46908 | active |
| Monaco Editor Monaco Editor is a browser‑based code editor that provides the same core editing experience as Visual Studio Code. It can be embedded in we… | 88 | 46784 | active |
| Monaco Editor Monaco Editor is the browser-based code editor that powers VS Code, distributed as an npm package with ESM and TypeScript API definitions. … | 88 | 46784 | stable |
| SiYuan SiYuan is an open‑source, privacy‑first knowledge workspace that stores notes as block‑level markdown and supports bidirectional linking. I… | 94 | 46723 | active |
| cathrynlavery/diagram-design Diagram Design is a collection of 39 editorial-quality diagram types rendered as self-contained HTML and SVG. It provides static, lightweig… | 59 | 46512 | active |
| Leaflet Leaflet is a lightweight open-source JavaScript library for creating interactive, mobile-friendly maps in web applications. It provides a s… | 75 | 45770 | active |
| Leaflet Leaflet is the leading open-source JavaScript library for building lightweight, mobile-friendly interactive maps, weighing about 40 kB gzip… | 75 | 45770 | stable |
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