TOTP Generator

Generate TOTP codes from a secret (RFC 6238) offline in LocalKit. Test 2FA flows locally—secrets stay in your browser with nothing uploaded for computation.

Interactive controls load with JavaScript. Processing stays in your browser—nothing is uploaded.

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How to use

  1. Open the tool — Open this LocalKit page and wait for the interactive controls to load.
  2. Provide input — Paste or type your content (or set options). Data stays in the browser.
  3. Run the action — Use the primary button or live controls to generate the result.
  4. Copy the result — Copy the output into your editor, terminal, or documents.

Limits

Requires JavaScript. Extremely large inputs may slow the browser tab. Results depend on your browser APIs; there is no server-side processing quota because nothing is uploaded.

When to use

When you want a quick, free utility without creating an account or sending content to an online converter.

When not to use

When you need server-side integration, batch automation at scale, or certified compliance tooling.

Privacy note

Tool inputs are processed in your browser only. Theme, language and favorites may use localStorage; hosting may keep standard access logs (IP, UA, URL) without tool payloads.

FAQ（5）

RFC 6238?

Yes—standard time-based OTP using your secret.

Clock drift?

Device clock must be roughly accurate.

Uploaded?

Secret stays local—do not paste production secrets on shared machines.

QR accounts?

Use your authenticator app for enrollment; this tool helps test codes.

Algorithm?

Typically SHA-1 with 30s steps unless options say otherwise.