Not sure what you mean by html based. Do you mean web based?
Does this fit your needs?
https://github.com/PrivateBin/PrivateBin
Per-FECT
Already got it running. Simple and clean, thanks!
I know you mentioned Nextcloud and if you happen to already be running it you can use the add-on/module/whatever called Secrets, its exactly what you describe. You make note, send link (can password protect if you want) and once its been viewed its gone.
If you don't already have Nextcloud, check out vaultwarden's (bitwarden) send feature.
I developed https://e2epaste.xyz/ a while back that is capable of this.
You can set the number of views, after which the paste is permanently deleted. It's fully end to end encrypted, and the server has no way of knowing the contents of pastes.
This is so sick, great tool
Thank you!
I think CryptPad has delete-after-view.
Edit: yes, it has
Nothing made with purely HTML would be capable of this.
I think I've seen some things like that, but you can never stop them from taking a screen shot, with a camera if necessary.
I mean that's pretty easy to build yourself. You can write a super simple web app and on get it displays a message then deletes it from database.
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