Erseni Vault compared with the alternatives

Both services send secrets that destroy themselves after the first retrieval. The difference lies in who holds the key, and in whether you can also ask someone for a credential instead of only sending one. Both sides are here, including the points where OneTimeSecret is ahead.

Both encrypt in the client, so neither provider can read what you share. The differences are whether you need an account to create something, and whether you can ask someone for a credential instead of only sending one. Including the parts where Bitwarden is ahead.

Both send credentials through links that expire after retrieval, and both can request credentials too. The difference lies in where encryption happens and who holds the key. Including the points where Password Pusher is ahead.

Both encrypt in the browser, the key sits in the URL fragment after the #, and neither server sees the plaintext. The differences are whether you can also request credentials and who runs the server. Including the parts where PrivateBin is ahead.