What is Secure Notes?

Write notes that are encrypted with AES-256-GCM right in your browser using the Web Crypto API. Your notes never leave your device — they're stored encrypted in local storage and can only be unlocked with your password.

How to use

Create a new note by entering a title and your content. Set a strong password that will be used to encrypt the note.
Lock the note to encrypt it. Your encrypted notes appear in the sidebar — click one and enter your password to decrypt and read it.
Export encrypted notes as a backup file, or delete notes you no longer need. All encryption happens locally — nothing is sent to any server.

Result

A user stores their Wi-Fi passwords and software license keys in separate encrypted notes, each protected with a unique password, knowing the data never leaves their browser.

Related Tools

PGP Key Generator

Generate PGP encryption key pairs

File Encryptor

Encrypt files with AES-256 encryption

SSL Certificate Decoder

Decode and inspect SSL/TLS certificates

Caesar Cipher Tool

Shift cipher with custom rotation

Passphrase Generator

Generate strong memorable passphrases

Password Generator

Generate strong random passwords instantly