JustJSON is a free, simple tool that lets developers quickly create, store, and manage JSON collections. Add, retrieve, and delete data with ease—perfect for testing, JSON placeholder, or mocking data for your apps.

Simulate APIs, integrations, and environments at enterprise scale.

Design, debug, and test APIs locally or in the cloud

Playwright enables reliable end-to-end testing for modern web apps.

Voiden is a developer-first API client with local storage, Git-integrated, all based on markdown + offline support.

The World's first AI Driven Enterprise Software Reliability Platform