Discover Amazing 🛠️ Open Source Tools

Explore our curated collection of the best free open source tools for developers. Find everything you need to build, test, and ship your projects.

Tools: 1089
Categories: 52
GitHub Stars: 27.1M
Contributors: 40.3k

Build Your Own X

Master programming by recreating well-known technologies from scratch with hands-on projects.

🎓 Learning & Career👨‍💻 Development🕶️ Awesome

Awesome

Collection of awesome lists on a wide range of interesting topics. These lists cover diverse subjects and offer community-driven insights and resources.

🕶️ Awesome

424.6k

FreeCodeCamp

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

🎓 Learning & Career🌐 Web🟡 JavaScript👨‍💻 Development

420.9k

Public APIs

A curated list of free APIs for use in software and web development, enabling easy discovery of public API resources.

🔁 API👨‍💻 Development🛠️ Tools🕶️ Awesome

342.3k

System-design-primer

An essential resource for learning how to design large-scale systems, preparing for system design interviews, and includes comprehensive Anki flashcards.

🎓 Learning & Career👨‍💻 Development🏗️ Architecture

291.8k

Awesome Python

An opinionated and comprehensive list of awesome Python frameworks, libraries, software, and resources.

🕶️ Awesome🐍 Python🎓 Learning & Career🛠️ Tools

285.4k

Awesome Self-Hosted

A comprehensive list of Free Software network services and web applications that you can host on your own servers.

🕶️ Awesome⚙️ DevOps🏠 Self-Hosted

262.9k

Project-Based Learning

A curated list of practical project-based tutorials to learn programming and software development skills.

🎓 Learning & Career👨‍💻 Development💡 Best Practices

244.4k

React

The library for web and native user interfaces, enabling the creation of complex, interactive UIs with a component-based approach.

👨‍💻 Development🟡 JavaScript🌐 Web🧰 Framework

214.5k

The Book of Secret Knowledge

A comprehensive collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, and a variety of CLI/web tools to enhance your knowledge.

🛠️ Tools🔨 Utils💡 Best Practices

203.0k

Computer Science

A comprehensive path to a free self-taught education in Computer Science, offering a structured curriculum and resources.

🎓 Learning & Career📚 Documentation👨‍💻 Development

198.4k

Python Algorithms

A comprehensive collection of all algorithms implemented in Python, suitable for learning and teaching purposes.

🎓 Learning & Career🐍 Python👨‍💻 Development

Our Newsletter

Find new open-source tools faster

Get short emails with useful developer tools, interesting repos, and project updates worth watching.

195.8k

JavaScript Algorithms

A comprehensive collection of algorithms and data structures implemented in JavaScript, complete with explanations and additional reading links.

👨‍💻 Development🎓 Learning & Career🟡 JavaScript🔬 Data Science

186.1k

Oh My Zsh

A delightful community-driven framework for managing your Zsh configuration, with over 2,400 contributors, 300+ plugins, and 140+ themes.

👨‍💻 Development🛠️ Tools⌨️ CLI⚡ Productivity

183.6k

A powerful fair-code workflow automation platform with native AI capabilities. It combines visual workflow building with the ability to include custom code. Self-host or use the cloud version with over 400+ integrations available.

👨‍💻 Development⚙️ DevOps🔁 API🤖 AI

173.4k

AutoGPT

AutoGPT is the vision of accessible AI for everyone, providing tools to focus on what matters in building and utilizing AI.

🤖 AI👨‍💻 Development🛠️ Tools

168.6k

Ollama

Ollama is an AI platform that enables you to easily run and experiment with popular open source and proprietary language models like OpenAI gpt-oss, DeepSeek-R1, Gemma 3, and more—locally, with a focus on privacy and low setup overhead.

🤖 AI👨‍💻 Development🛠️ Tools

159.2k

Transformers

State-of-the-art Machine Learning library for Pytorch, TensorFlow, and JAX, providing thousands of pre-trained models for natural language processing, computer vision, and other areas.

🤖 AI🧰 Framework🔬 Data Science

158.9k

Stable-diffusion-webui

A comprehensive web-based user interface for Stable Diffusion, providing powerful tools for generating and modifying images using AI models directly from your browser.

🤖 AI🌐 Web🛠️ Tools📈 Visualization

156.2k

Yt-dlp

A feature-rich command-line tool for downloading audio and video from YouTube and other sites.

⌨️ CLI👨‍💻 Development🏠 Self-Hosted🛠️ Tools

139.5k

Awesome ChatGPT Prompts

A curated collection of ChatGPT prompts to enhance the use of ChatGPT and other language model tools.

🤖 AI🛠️ Tools🕶️ Awesome🎓 Learning & Career

138.9k

Next.js

Next.js is the React framework for production, enabling React-based web applications to be built with ease, offering a powerful, fully featured, headless solution.

👨‍💻 Development🧰 Framework⚛️ React🌐 Web

138.7k

Tech Interview Handbook

Curated coding interview preparation materials for busy software engineers, covering essential topics, challenges, and tips.

🎓 Learning & Career💡 Best Practices

137.3k

Dify

A production-ready platform facilitating the development of agentic workflows with robust features and integration capabilities.

👨‍💻 Development🤖 AI⚡ Productivity🛠️ Tools

131.3k

Open-webui

A user-friendly AI interface that supports Ollama, OpenAI API, and other AI backends, providing an accessible platform for interacting with AI models.

🤖 AI🌐 Web⚡ Productivity🛠️ Tools

123.1k