Show HN: Mephisto – A RAM-only, ad-free disposable email PWA built with React https://ift.tt/9xPcqsf

Show HN: Mephisto – A RAM-only, ad-free disposable email PWA built with React Hi HN, I built Mephisto because I was frustrated with the current state of disposable email services—most are riddled with intrusive ads, trackers, and captchas. I wanted a tool that felt like a proper developer utility rather than a spam farm. The stack is React, Vite, and Tailwind. Key architectural decisions: 1. Volatile Memory: The backend writes nothing to disk. Once a session terminates, the data is irretrievable. 2. Client-Side Entropy: The password generator runs locally in the browser; keys are never sent to the server. 3. PWA: It's installable and designed for low latency using WebSockets for incoming mail (no polling). 4. Mobile Handoff: You can transfer an active session to mobile via an encrypted QR code. It is completely free and open for public use. I'd love to hear your feedback on the implementation and UI. https://mephistomail.site December 17, 2025 at 06:54AM