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.

Explore your app like a real user, operating a real web browser, handling login (with MFA), handling email interactions, all whilst operating large multi-step user journeys. Any bugs are reported along with auto-generated Playwright tests.

YOPmail’s free, quick and feature rich service guards you against spam. Protect your actual email with an anonymous email address, instead use YOPmail’s disposable one to sign-up wherever you want.

Email and SMS APIs for developers, QA teams, and marketing. Create and control phone numbers and email accounts at scale.

Simulate APIs, integrations, and environments at enterprise scale.

Forget about spam, advertising mailings, hacking and attacking robots. Keep your real mailbox clean and secure. Temp Mail provides temporary, secure, anonymous, free, disposable email address.