SNPad (Secret Notepad) is a simple text-only end-to-end encryption website for all your secret text needs.
Unlike other E2E solutions, SNPad allows you to use different passwords for each documents.
It's up to you to remember the passwords you use for each document.
This also increases security since if one password is compromised, your other documents remain safe.
SNPad is completely open-source, feel free to contribute or simply browse the code to see how SNPad works under the hood.