Generate strong random passwords and encrypt text with AES-GCM, entirely in your browser. The randomness comes from your device's own cryptographic generator and the result is never transmitted — which is the only sensible arrangement for a password you actually intend to use.
How to generate a strong password
Choose a length and which character sets to include.
Generate, and copy the result.
To protect a note or a message instead, switch to the encrypt tab, enter a passphrase and encrypt the text.
Keep the passphrase somewhere safe — without it the ciphertext cannot be recovered by anyone, including us.
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Questions
Are generated passwords sent anywhere?
No. They are produced by your browser's crypto API on your device and never transmitted or stored remotely.
What encryption does it use?
AES-GCM, via the browser's own Web Crypto implementation — a real authenticated cipher, not a homemade scheme.