Relay Developer Tools

XPath Helper

Adam Sadovsky

Extract, edit, and evaluate XPath queries with ease.

Postmann

Shatadip Majumder

Perform API testing with Postmann, inspired by Postman. Handle GET, POST, PUT, PATCH, UPDATE, DELETE HTTP requests with precision.

Color Picker - Web Development

Free eyedropper tool for capturing website colors. Features live color picking, plus color history.

Codeium Enterprise

Your modern coding superpower. Get code completions in Colab and more.

REST Client

Use Rest Client – your powerful REST API client tool for testing and debugging HTTP requests both online and locally in Chrome

Mockiato — Free API Testing & Mocking Tool

mockiato.extension

Chrome extension to intercept requests, create real-time mocks, and auto-insert headers for web development & testing API.

Preact Developer Tools

Preact Developers

Adds debugging tools for Preact to Chrome