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TOTP 2FA Generator

Paste a base32 secret and get live RFC 6238 one-time codes with a countdown. The secret never leaves your browser.

[ TOOL ] LIVE
Current code-- s left
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Next: ------T = –
[ RFC 6238 · HMAC-SHA1 ]
Spaces allowed. This is the string sites show next to the QR code.

Runs entirely in your browser — nothing is uploaded