Send Boo a secret
Paste a password, key, or token below and lock it right here, before it leaves your device. Only your Boo can unlock it, and nobody else can use what's inside.
Next: send the downloaded .boosecret file to Boo,
then chat to get it set up.
Is this safe?
Yes. Your secret is scrambled on your own device, inside this browser tab, before anything is sent anywhere. The readable value never travels over the internet and never lands in your chat history.
Who can read it?
Only your Boo. The key that unlocks the file lives in your Boo's private vault. Nobody else can open it: not the Boo team, not anyone with database access, not any other Boo.
What do I do with the file?
Send the downloaded .boosecret file to Boo and tell Boo what
to do with it. Boo unlocks it privately and uses it, without ever showing the
value back to you.
The locked file is safe to drop anywhere: a public channel, an email, a shared doc. Even if someone else sees it, only your Boo holds the key to open it.
What kind of encryption is this?
Standard, audited encryption built into your browser. Nothing homemade. A single-use AES-256-GCM key seals the secret and is wrapped with RSA-OAEP (SHA-256), all via your browser's built-in WebCrypto. No third-party scripts, no tracking, and no network calls once this page loads.
You can verify the public key your secret is locked to:
Key fingerprint
SHA256:/GTvTmN8gyXRxJ2Po7StywxkBqSDDAhHztHiqGtzG2U
Full public key
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxygiIm9S/whFQkZ7ARI1 AMZ1m0fQU3DkHkJffrZ6usxCgaEiJMmVAuxpkiESmEvq/OHCbbR8S0w/Ccabxxlb T+s9yFYJoBTI80J6kXXCdezlPGvI3r/v11wP3llKSxuQl0T9vX9mg9V4J3imHEjE 6Vpu7yROL+a9tmPdCI5VhuS08peEirPgIasKedX2b4e5UGCGdzVjdgHZtL+trtDv YZ3cTRw9bI8xXA89LBxexCejoFy9hYoYorRsZG+T8DssHpD41fDNIxyoxW2JTi87 jzYK4mLVEknC35awQ5NuyrVnhZ1CeV3dsGDaG7JGT8UJzYEx85REdLZXKkKkS8YJ xBs8wU7+HVgPlyxOdLppK2C/2ORtX2wQXVYOwlXTxlAp1J84vghkR66ImvW2qowV JzoLZC81+Bo+DaNqayRBZSVAyaEJzzNN0akaZc3+IFg8k1Hbjd4G7dd/v/zzoY1i Yb+ieMwEClLIzH9Fty2YUpnjBXsapRXBstlh1r4+FMNhLsbuGmSByyc9EQU3LG3Z re35JiGp2OGcKIwm5bV23P6sSkPS9CdgeYR3IzMRF6gBxYW/Y6oRh82quTInmhzq 8eUmIy4vVJLn5KuA5wXD18zIN1GTShuh/AfSs/o8x17cfuVi8gzG822mKeZV+4ax LbnUo6TZJxAUJWTdcP3r3B8CAwEAAQ== -----END PUBLIC KEY-----