OneFreePlace
FREE ONLINE TOOL

Free TOTP
Generator

Generate, inspect and verify standards-based time one-time passwords with clock-window diagnostics and zero secret uploads.

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FreeUse this tool without paying.No sign upStart with the tool right away.Clear stepsRead the tool’s own guidance.

About Free TOTP Generator

SHA1, 6 digits and a 30-second period remain the safest interoperability defaults for authenticator apps. RFC 6238 also specifies SHA256 and SHA512. Some authenticator implementations may ignore non-default otpauth parameters, so test advanced profiles with the target app.

Workspace options

  • Base32 secret
  • Issuer / service
  • Account label
  • HMAC algorithm
  • Digits
  • Period (seconds)

Available actions

  • Generator
  • Verify & drift
  • Algorithm inspector
  • Guide
  • Reveal
  • New secure secret