OneTimeSecret is one of the original self-destructing secret sharing tools on the web. Since its launch, it has earned the trust of sysadmins and developers who need a quick, no-frills way to send a password or API key as a one-time link. It is open source, battle-tested, and has a straightforward interface that gets the job done.
However, as security standards evolve, many teams are looking for an alternative that goes further. OneTimeSecret relies on server-side encryption, which means the service technically has access to your plaintext data during processing. For organizations that require mathematical privacy guarantees rather than trust-based ones, this is a meaningful distinction. Nurbak was built to address exactly this gap: all encryption happens in your browser before data ever reaches a server, ensuring true zero-knowledge privacy with a modern, accessible interface and zero infrastructure to manage.