Open Source Web Development Projects
Discover 119 open source Web Development repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. Web Development projects here are most often combined with Library, TypeScript and Python. Last updated October 4, 2026.
119 repositories · updated October 4, 2026
style-observer: Detect Changes to CSS Properties
Style Observer is a JavaScript library that detects changes to CSS properties on connected elements, including custom properties and elements in Shadow DOM. Use it when application logic needs to respond to style changes without polling.
bolt.diy: Build Full-Stack Apps with Your Choice of LLM
bolt.diy is a browser-based AI coding workspace for creating, editing, and deploying Node.js web applications. It connects to many hosted and local model providers, making it useful when you want control over which LLM powers your development workflow.
daedalOS: Use a Desktop Environment in Your Browser
daedalOS recreates a desktop environment in the browser, with a file system, movable windows, and a broad collection of apps, emulators, and games. It suits people exploring browser-based computing or building a self-contained interactive desktop experience.
SaaS-Boilerplate: Build SaaS apps with Next.js
A TypeScript starter for building full-stack SaaS applications with Next.js. It bundles authentication, team tenancy, permissions, database access, localization, and testing so developers can start from an integrated foundation.
Framely: Build Multi-Tenant Websites With Drag-and-Drop
Framely is a Next.js boilerplate for building multi-tenant website editors with drag-and-drop page creation and custom domain support. It suits developers who want a starting point for a hosted website-builder product rather than a standalone page-design tool.
inferno: Build Fast React-Like User Interfaces
Inferno is a JavaScript library for building browser and server-rendered user interfaces with a React-like component model. Its compile-time and runtime optimizations target applications where rendering performance matters.
htmx: Build Interactive Interfaces with HTML Attributes
htmx lets web developers trigger HTTP requests and update parts of a page through HTML attributes, reducing the need for custom JavaScript in server-driven interfaces. It supports AJAX, CSS transitions, WebSockets, and server-sent events without dependencies.
icons: Browse and Use Software Logos and Icons
selfhst/icons is a collection of logos and icons for self-hosted and other software. Browse the catalog online or use the assets through jsDelivr, with multiple image formats available for integration into apps and dashboards.
BrowserAI: Run AI Models Directly in Your Browser
BrowserAI is a TypeScript library for running language, speech, and audio models locally in a web browser. It suits developers building privacy-conscious AI features without server-side inference, provided users have a compatible WebGPU browser and hardware.
dioxus: Build Cross-Platform Apps with Rust
Dioxus is a Rust UI framework for building web, desktop, and mobile apps from a shared codebase. It combines reactive UI, development tooling, and optional fullstack features for teams that want Rust across client and server.
pokemon-js: Play a Pokémon Red/Blue Recreation in Your Browser
pokemon-js recreates Pokémon Red and Blue as a browser game built with React and TypeScript. It combines familiar exploration and turn-based battles with a Game Boy-style interface, making it useful for fans and developers interested in a web-based retro game project.
hugo-PaperMod: Build Fast, Responsive Hugo Sites
Hugo PaperMod is a responsive theme for Hugo blogs and content sites. It provides flexible home-page layouts, multilingual support, search, and SEO features without requiring a JavaScript build toolchain.