Open Source AI Coding Agents using Express

A curated collection of the best open source tools that take a task or issue and carry it to completion on their own: planning, editing files, running tests, and opening pull requests. using Express.

Open-source coding agent for your IDE and terminal

Runs source-controlled AI checks on every pull request, enforcing your engineering standards as native GitHub status checks with suggested fixes.

Open Source Alternative to:

AI coding agent that sees your live app and edits code

Open-source AI coding agent that runs in your browser, sees your live DOM and app state, and makes real code edits from plain English descriptions.

Open Source Alternative to:

Capture

Capture screenshots, generate PDFs, scrape content, extract metadata, and automate browsers with one API.