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.

Free temporary and disposable email generator

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.

Mailinator allows Developers and QA Testing teams to automatically test their SMS and Email workflows like 2FA verifications, sign-ups, and password resets with trillions of inboxes at your fingertips.

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.

Temporary emails lasting 2+ months, centralized multi-inbox dashboard, instant creation, custom domains, extendable duration, cross-device use, Gmail-based emails, guest-to-account linking, 2FA management, API, and privacy-first design