Onetime Secret
onetimesecret.com
Puts a secret behind a link that destroys itself once it is opened
No sign-upClassic
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bitwarden.com
Shares a password through a link that stops working after one view.
Send is the sharing half of Bitwarden's password manager: paste text, set a maximum number of views and a deletion date, optionally add a password, and hand over the link. It is the correct way to give a colleague a credential instead of pasting it into a chat where it lives forever. Text sends are free on any account; sending a file requires a premium subscription.
Questions
A genuinely usable free tier with paid plans for volume or team features. File sends need a paid Bitwarden account — only text sends are included free.
Yes. Bitwarden Send sends your input to its own servers to process it. That is fine for public material; for anything containing personal data, use one of the on-device tools instead.
File sends need a paid Bitwarden account — only text sends are included free.
Alternatives
Same category or same task, ordered by how closely they overlap.
onetimesecret.com
Puts a secret behind a link that destroys itself once it is opened
fromsmash.com
Sends a file of any size without charging you for the big ones
wetransfer.com
Drop a file, type two email addresses, and it sends a download link
wormhole.app
Encrypts the file in your browser, then hands you a self-expiring link
send-anywhere.com
Pairs two devices with a six-digit key instead of sending a link
send.tresorit.com
A 5 GB end-to-end encrypted drop that needs no sign-up on either side