Free Developer Tools

Discover curated free and open source tools, APIs, and resources. Boost your productivity without spending a dime.

Featured Tools

React

250.8k

The library for web and native user interfaces.

frontend
declarativefrontend

The Book Of Secret Knowledge

246.5k

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

testing
awesomeawesome-list

Vue

212.8k

This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core

frontend
frameworkfrontend

Tensorflow

200.6k

An Open Source Machine Learning Framework for Everyone

ai ml
deep-learningdeep-neural-networks

Ohmyzsh

190.0k

🙃 A delightful community-driven (with 2,500+ contributors) framework for managing your zsh configuration. Includes...

cli tools
clicli-app

Transformers

166.8k

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, ...

ai ml
audiodeep-learning

Dify

157.4k

Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on...

ai ml
agentagentic-ai

Langflow

155.3k

Langflow is a powerful tool for building and deploying AI-powered agents and workflows.

frontend
agentschatgpt

Kubernetes

128.1k

Production-Grade Container Scheduling and Management

devops
cncfcontainers

Playwright

96.8k

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a singl...

testing
automationchrome

Puppeteer

95.6k

JavaScript API for Chrome and Firefox

testing
automationchrome

Uptime Kuma

91.9k

A fancy self-hosted monitoring tool

monitoring
dockermonitor

Hoppscotch

80.5k

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-...

api tools
apiapi-client

Excalidraw

80.0k

Virtual whiteboard for sketching hand-drawn like diagrams

productivity
drawingwhiteboard

Grafana

77.0k

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multi...

monitoring
alertinganalytics

Headroom

74.0k

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-...

backend
agentai

Ruflo

73.4k

🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build con...

devops
agentic-aiagentic-framework

Moby

72.1k

The Moby Project - a collaborative project for the container ecosystem to assemble container-based systems

devops
containersdocker

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