2FA Backup Codes Generator
Generated locally in your browser. Codes use an unambiguous lowercase alphabet that omits 0, o, 1, l, and i. Copy the batch as lines, CSV, or a JSON array.
One-time two-factor recovery codes
Generate a batch of 2FA backup codes in the recognizable xxxxx-xxxxx shape that GitHub, Google, and similar services hand out when you enable authentication. Use them to seed account-security screens, fill “save your backup codes” flows, and build fixtures for settings pages and onboarding tests.
These codes are fixtures only — nothing leaves the browser and they are not tied to any real account. Adjust the count from 5 to 20 codes to match the screen you are mocking.