By category

Top Developer tools

The most-starred MIT projects in Developer tools.

How it's ranked: Sorted by GitHub stars. A project can appear in up to two categories. Data from GitHub as of 2026-11-02.

1. 1public-apisA community-curated list of free public APIs you can use in your own projects.public-apis · Python★ 495k
2. 2SuperpowersA set of composable skills and instructions that guide coding agents through planning, TDD, and reviewed develobra · Shell★ 311k
3. 3SkillsA set of reusable instruction files that guide AI coding agents through alignment, testing, and design.mattpocock · Shell★ 310k
4. 4ECCA set of skills, memory, and security rules that makes AI coding agents work more carefully.affaan-m · JavaScript★ 295k
5. 5DeepSeek HarnessAn open-source agent harness built on a plugin-first design, run from a local Web UI.deepseek-ai · TypeScript★ 269k
6. 6Hermes AgentA self-improving AI agent that runs in your terminal and chat apps and learns from past work.NousResearch · Python★ 260k
7. 7The Book of Secret KnowledgeA large curated list of links to cheatsheets, manuals, tools and one-liners for sysadmins and security folks.trimstray★ 255k
8. 8The Algorithms - PythonA large collection of classic algorithms implemented in Python, for learning.TheAlgorithms · Python★ 226k
9. 9OpenCodeAn open source AI coding agent you run in your terminal, with a desktop app in beta.anomalyco · TypeScript★ 224k
10. 10javascript-algorithmsJavaScript examples of many classic algorithms and data structures, with explanations and reading links.trekhleb · JavaScript★ 197k
11. 11Claw CodeA Rust command-line AI coding agent, presented as an agent-maintained museum exhibit rather than a production ultraworkers · Rust★ 195k
12. 12VS CodeMicrosoft's open-source code editor, the base of Visual Studio Code, for writing and debugging code.microsoft · TypeScript★ 194k
13. 13MarkItDownPython tool that converts files like PDF, Word, Excel and PowerPoint into Markdown.microsoft · Python★ 193k
14. 14awesome-goA curated, community-maintained list of links to Go libraries, frameworks and tools.avelino · Go★ 192k
15. 15Oh My ZshA community framework that manages your zsh shell config, with bundled plugins and themes.ohmyzsh · Shell★ 190k
16. 16OllamaRuns open AI models like Gemma, Qwen and DeepSeek on your own machine or in the cloud.ollama · Go★ 186k
17. 17PonytailA Claude Code and agent skill that makes the AI write less code, aiming for the smallest working change.DietrichGebert · JavaScript★ 182k
18. 18LangflowVisual builder for creating and deploying AI agents and workflows, with API and MCP server output.langflow-ai · Python★ 156k
19. 19CC SwitchDesktop app to switch API providers and manage MCP, Skills, and prompts for AI coding agents.farion1231 · Rust★ 151k
20. 20LangChainA Python framework for building AI agents and apps powered by language models.langchain-ai · Python★ 149k
21. 21Airbnb JavaScript Style GuideA widely used style guide with rules and ESLint configs for writing consistent JavaScript.airbnb · JavaScript★ 148k
22. 22Spec KitA toolkit that gives AI coding agents structured, repeatable processes for building, fixing bugs, and assessingithub · Python★ 145k
23. 23gstackMarkdown skills that give Claude Code and other coding agents roles like CEO, reviewer, QA, and release enginegarrytan · TypeScript★ 139k
24. 24llama.cppRuns large language models locally in plain C/C++, on CPUs and many kinds of GPUs.ggml-org · C++★ 133k
25. 25PiA minimal, extensible coding agent and toolkit for building AI agents, with a terminal interface.earendil-works · TypeScript★ 119k