I've already shared this months ago but made a lots of modifications since then, Shhh is a Flask app to share encrypted secrets using secured links with passphrases and expiration dates. The goal is to keep secrets away from email or chat logs.
I understand that you can't trust anyone with your data, that's why it's mainly built for people or organisations to set it up on their own local/private server. There is also a one-click deploy button to Heroku 🙂
I know some great projects such as OnetimeSecret or PasswordPusher already exists, but it was actually really fun making my own!
If anyone wants to contribute you're more than welcome!
Here is the repo: [https://github.com/smallwat3r/shhh](https://github.com/smallwat3r/shhh)