Free
Audacity
Open SourceAudio & Video · Image & Media
The classic open-source audio editor — multi-track editing, noise removal and effects for podcasts and voiceovers.
audioeditingpodcast
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Audio & Video · Image & Media
The classic open-source audio editor — multi-track editing, noise removal and effects for podcasts and voiceovers.
Authentication · API Tools
Open-source authentication for Next.js and other JS frameworks.
Animation · Frontend
One-function animation utility that adds smooth transitions to DOM changes — zero configuration.
Agent & LLM Frameworks · AI for Developers
Microsoft's framework for multi-agent AI conversations.
Ecosystem · CSS Tools
PostCSS plugin that adds vendor prefixes using Can I Use data.
Frameworks · Backend
Ergonomic, modular Rust web framework built on Tokio.
UI Libraries · Frontend
Headless React components from the Material UI team — unstyled primitives with strong accessibility.
Programming Languages
Official GNU Bash shell website with manual and downloads.
CLI Tools · Development Environment
cat clone with syntax highlighting and Git integration.
GUI Clients · Database
Open-source, easy-to-use SQL editor and database GUI.
Authentication · API Tools
Framework-agnostic TypeScript authentication library (trending).
Build & Lint · Frontend
One fast Rust toolchain for linting, formatting and more (trending).
Passwords & IDs · Security
Open-source password manager with a free generator and vault.
Offline Toolkits · Developer Utilities
A scriptable scratchpad for macOS with 100+ built-in text transformations — paste, transform, copy back.
UI Libraries · Frontend
The classic CSS framework with components, grid and utilities.
Icons · Frontend
Free, high-quality SVG icon library from the Bootstrap team with 2,000+ glyphs — works far beyond Bootstrap.
API Clients · API Tools
Fast, Git-friendly open-source API client that stores collections locally.
Architecture & Patterns · Project Starters
The popular open-source reference architecture for scalable React apps — folder structure, patterns and real conventions.
Queues & Streaming · Database
Robust Redis-backed job queue for Node.js.
Ecosystem · CSS Tools
Flexbox-based CSS framework with no JavaScript — readable class syntax and modular imports.
Frameworks · Backend
All-in-one JavaScript runtime, bundler, test runner and package manager.
Web Servers & Proxies · DevOps
Web server with automatic HTTPS and simple configuration.
Scheduling & Booking · API Tools
Open-source scheduling infrastructure — Calendly alternative with booking links, teams and an API you can self-host.
Learning & Reference · CSS Tools
Browser support tables for HTML, CSS and JavaScript features.