Free Developer Tools

build-your-own-x

by codecrafters-io

Master programming by recreating your favorite technologies from scratch.

public-apis

by public-apis

A collective list of free APIs

ECC

by affaan-m

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

FreeDomain

by DigitalPlatDev

Free domain registration and practical DNS learning resources for everyone.

ponytail

by DietrichGebert

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

graphify

by Graphify-Labs

Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local…

free-programming-books-zh_CN

by justjavac

:books: 免费的计算机编程类中文书籍，欢迎投稿

puppeteer

by puppeteer

JavaScript API for Chrome and Firefox

archify

by tt-a1i

Turn any idea, plan, or codebase into a beautiful interactive diagram. An agent skill for Claude Code, Codex, and more.

OpenHands

by OpenHands

🙌 OpenHands: AI-Driven Development

rtk

by rtk-ai

CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

hoppscotch

by hoppscotch

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

awesome-claude-skills

by ComposioHQ

A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows

dsh-our-free-model

by Ebony-Vinyl

在 dsh 里装上这个插件即可，无需登录、注册或填 API Key，就能使用包括 DeepSeek V4.1 Flash、Kimi K3 在内的前沿模型——完全免费，不限量。 All you do is install this plugin in dsh: no login, no sign-up, no API key — the frontier…

i-have-adhd

by ayghri

A skill to stop your coding agent from burying the answer. ADHD-friendly output.

agentic-awesome-skills

by sickn33

2,926+ reusable AI agent skills for Claude Code, Codex, Cursor and Gemini CLI. AAS Core adds local catalog discovery, agent-owned selection and plan preview. CLI, MCP and plugins.

herdr

by herdrdev

the runtime your coding agents live on

GitHubDaily

by GitHubDaily

坚持分享 GitHub 上高质量、有趣实用的开源技术教程、开发者工具、编程网站、技术资讯。A list cool, interesting projects of GitHub.

bruno

by usebruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

codebase-memory-mcp

by DeusData

Local code intelligence for developers and AI agents. Connect code, docs and infrastructure in a persistent graph, with CBM Lens, MCP tools, agent integrations and change-aware…

data-engineering-zoomcamp

by DataTalksClub

Data Engineering Zoomcamp is a free 9-week course on building production-ready data pipelines. Join the course here 👇🏼

Files

by files-community

A modern file manager that helps users organize their files and folders.

Rocket.Chat

by RocketChat

The Secure CommsOS™ for mission-critical operations

streamlit

by streamlit

Streamlit — A faster way to build and share data apps.

yazi

by sxyazi

💥 Blazing fast terminal file manager written in Rust, based on async I/O.

agno

by agno-agi

The self-driving agent platform

Codewhale

by codewhale-hq

Open-source agent for the terminal written in Rust. Use any provider or model. Issues & PRs always welcome

it-tools

by CorentinTh

Collection of handy online tools for developers, with great UX.

appsmith

by appsmithorg

Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

shellcheck

by koalaman

ShellCheck, a static analysis tool for shell scripts

devdocs

by freeCodeCamp

API Documentation Browser

lapce

by lapce

Lightning-fast and Powerful Code Editor written in Rust

ai-website-cloner-template

by JCodesMore

Clone any website with one command using AI coding agents

cli

by httpie

🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.

continue

by continuedev

open-source coding agent

DeepSeek-Reasonix

by esengine

A reliable coding agent for complex software engineering tasks.

refine

by refinedev

A React Framework for building internal tools, admin panels, dashboards & B2B apps with unmatched flexibility.

Recordly

by webadderallorg

Create polished demo videos without editing skills. Mac/Windows/Linux

tabby

by TabbyML

Self-hosted AI coding assistant

gpt-pilot

by Pythagora-io

The first real AI developer

surrealdb

by surrealdb

A scalable, distributed, collaborative, document-graph database, for the realtime web

vorssaint-utils

by vorssaint

Free and open-source macOS menu bar toolkit.

DevToys

by DevToys-app

A Swiss Army knife for developers.

lighthouse

by GoogleChrome

Automated auditing, performance metrics, and best practices for the web.

composio

by ComposioHQ

Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.

repomix

by yamadashy

📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models (LLMs) or…

claude-skills

by alirezarezvani

380 Claude Code skills & agent skills & plugins (30+ Agents, 70+ custom commands, 380+ skills, customizable references, scripts)for Claude Code, Codex, Gemini CLI, Cursor, and 8…

reflex

by reflex-dev

🕸️ Web apps in pure Python 🐍

qwen-code

by QwenLM

An open-source AI coding agent that lives in your terminal.

MusicFree

by maotoumao

插件化、定制化、无广告的免费音乐播放器