Open Source Developer Tools
Discover 447 open source Developer Tools repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. Developer Tools projects here are most often combined with Python, AI Agents and CLI. Last updated October 4, 2026.
447 repositories · updated October 4, 2026

pipet: Scrape and Extract Data from the Web
Pipet is a command-line tool for extracting data from HTML pages, JSON endpoints, and JavaScript-rendered websites. It suits developers and technically minded users who want reusable scraping queries, shell-pipeline processing, or change monitoring.

cli: Send and Inspect HTTP Requests from the Terminal
HTTPie CLI is a Python command-line client for sending HTTP requests with readable syntax and formatted output. It is useful for testing APIs, debugging services, and making repeatable requests from scripts or a terminal.

stagehand: Build AI Agents That Use Websites
Stagehand is a browser automation SDK for AI agents, combining Playwright-style controls with natural-language actions and structured data extraction. It supports TypeScript, Python, and Go, and can run with a local browser or Browserbase.