Open source. Open possibilities.

A professional front-end starter template for building fast, robust, and adaptable websites or web apps, refined over a decade by a large community.

TW Elements is an MIT-licensed component library for Tailwind CSS, offering 500+ interactive UI components and 117+ design blocks with dark mode support, theming options, and quick installation for personal and commercial use.

Hyper is an open-source terminal emulator built on open web standards, offering an extensible, customizable command-line experience with plugins and themes.

EasySpider (易采集) is a free visual browser automation and web scraping tool with a no‑code GUI, command‑line mode, flowchart‑style task design, looping, conditional branches, OCR, custom JS/Python, MySQL output, scheduled and parallel runs, IP pool switching, and AGPL‑3.0 license; featured at WWW 2023 with a patent and a Zhejiang University thesis.

Parcel is a zero-configuration web build tool that supports HTML, CSS, JavaScript and many asset types out of the box, with a built-in dev server, hot reloading, Rust-based compilation, caching, and automatic production optimization.

htmx is a small, dependency-free JavaScript library that lets you issue AJAX requests, use CSS transitions, WebSockets and Server Sent Events directly from HTML attributes, enabling hypertext-driven interfaces without heavy frontend frameworks.

Flowbite is an open-source UI component library built on Tailwind CSS, offering interactive components like modals, dropdowns and datepickers driven by data attributes, with vanilla JS APIs, TypeScript types, RTL support and bindings for React, Vue, Svelte and Angular.

Prettier is an opinionated code formatter that parses code and reprints it with consistent rules, taking maximum line length into account and wrapping when needed. It can run in editors on save, pre-commit hooks, or CI.

WeasyPrint is a Python-based HTML/CSS to PDF rendering engine that helps developers generate professional documents like reports, invoices, and tickets from web markup.

A tool for writing and generating interactive gamebooks from Markdown and YAML, with builds for HTML, PDF, EPUB, and optional MOBI.

Tabler is a free, MIT-licensed HTML dashboard UI kit built on Bootstrap 5, offering ready-made layouts, components and 120+ demo pages for admin panels, dashboards and web apps, with dark mode, RTL stylesheets, Sass sources and TypeScript types.

Lumen is a private and lightweight web browser with its own engine, written from scratch in Rust without using Chromium or WebKit wrappers.

A collection of app ideas for developers to practice coding, organized into Beginner, Intermediate, and Advanced tiers. Each project includes user stories, bonus features, and resources to guide building from scratch.

Dioxus is a Rust fullstack app framework for building web, desktop, and mobile applications from one codebase, with zero-config setup, integrated hot-reloading, signals-based state management, server functions, and a bundling CLI.

Metis is a free MIT-licensed Bootstrap 5 admin dashboard template built with Alpine.js, Vite and SCSS. It ships responsive dashboard, user/product/order management, calendar, messages, reports, settings, auth and error pages, plus dark/light themes and a self-hosted asset setup.

Video.js is a full-featured open source web video player and framework supporting HLS, DASH, and common media formats across desktop, mobile, and Smart TVs, extensible via hundreds of plugins.

Source code for the AT Products LLC website, built with Astro, Vue, Bootstrap and jQuery and deployed through Netlify. One repository holds the main site, a beta site, a portfolio, a maintenance page and an unblocked-games site on separate branches.

tsParticles is a lightweight TypeScript library for creating customizable particle effects, confetti, and fireworks animations as website backgrounds. Offers framework-specific components for React, Vue, Angular, Svelte, and more.

Webcore UI is an open-source component library for Astro, Svelte, and React. It uses Sass for styling and offers customizable components, blocks, templates, a CLI, themes, and CSS variables.

Quivr is an opinionated RAG framework for integrating generative AI into applications. It supports any LLM, vectorstore, and file type, enabling developers to build a 'second brain' with minimal code.