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Latest commit 83d15bd Feb 15, 2018

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FreeOTP is a two-factor authentication application for systems utilizing one-time password protocols. Tokens can be added easily by scanning a QR code.

FreeOTP implements open standards:

  • HOTP (HMAC-Based One-Time Password Algorithm) RFC 4226
  • TOTP (Time-Based One-Time Password Algorithm) RFC 6238

This means that no proprietary server-side component is necessary: use any server-side component that implements these standards.

Download FreeOTP for iOS


Pull requests on GitHub are welcome under the Apache 2.0 license, see COPYING.