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Sub Rosa is a zero-knowledge secret sharer. We physically cannot read your messages.
Most tools generate keys on the server. We don't. Your browser encrypts data locally using the Web Crypto API. The key lives in the URL hash (#) and never touches our logs or database. We only store the encrypted blob, which is burned instantly after reading.
100% Open Source. No ads. No trackers. Just privacy.
Sub RosaAn e2e secret sharing website with client-side encryption
Max Luchterhandleft a comment
I built this because I didn't trust other secret sharing services. It encrypts your message in the browser and never sends the key to the backend. The key is included in the fragment of the URL that you share. Messages are destroyed after they are read. The frontend is written in plain JavaScript, you can inspect the source code and see that only the encrypted payload is transmitted to the...
Sub RosaAn e2e secret sharing website with client-side encryption