openNote

A fast, tabbed code-and-text editor in the spirit of Notepad++ — with a built-in, end-to-end-encrypted vault for your secrets. Everything is encrypted in your browser before it’s ever stored.

Zero-knowledge

Notes and secrets are encrypted with your master passphrase via Argon2id + XChaCha20-Poly1305. The server only ever sees ciphertext.

Notepad++ feel

Tabbed editing, syntax highlighting for 25+ languages, code folding, and regex find & replace, powered by CodeMirror.

Secrets vault

Keep passwords, API keys and tokens encrypted. Export to a .snv file the SecureNote desktop app can open, and back.