Cold storage utility

Saito Offline Wallet Tool

Create or restore a Saito wallet locally in your browser. This self-contained utility is designed to run from a verified file on a disconnected computer.

Disconnect before creating keys.

For strongest isolation, turn off Wi-Fi and unplug networking before you continue.

New cold-storage wallet

Generate a fresh key pair

Your browser's cryptographic random-number generator creates a 24-word BIP39 phrase using 256 bits of entropy. Nothing is sent or automatically saved by this utility.

Disconnect from all networks to enable key creation.
Before you trust it

Cold-storage checklist

1
Verify the file

Obtain index.html from a trusted release and compare its published SHA-256 digest.

2
Use a clean device

Open the file in an up-to-date browser without extensions, ideally on a dedicated computer.

3
Disconnect physically

Turn off Wi-Fi and Bluetooth and remove network cables before generating or restoring keys.

4
Back up offline

Write, print, or download the secrets, verify the copy, then clear the utility and shut down the device.