Burnvelope - Share Secrets That Burn After Reading

I've used password.link quite a bit in the past for sending secrets to users, simply due to the privacy of the request hidden from the hosting company and the security it provides by not having secrets linger in message histories. I always thought the idea was pretty genius, using the hash as a way to share the client side key without ever sending anything to the server. This inspired to me take a deeper dive into the concept, and like HuePass, was a perfect opportunity to have a small scale project that I could work on to better learn agentic development. The result I think is an elegant and useful tool which I am happy to host and share with others who may need a similar service. All of the source code is available for anyone who wants to verify the implementation; and as always, feedback is very much welcome. Consider using Burnvelope the next time you need to share a secret.