2FA.tools
Your codes, your browser, your privacy
by Harindu Jayakody · Built with Claude Sonnet 4.6
2FA.tools
Your codes, your browser, your privacy
by Harindu Jayakody · Built with Claude Sonnet 4.6
Enter your secret key and instantly generate a time-based one-time password — right in your browser. No app needed.
One key per line. Ctrl+Enter to generate.
Your secret key never leaves your device. All TOTP computation happens locally using the browser's native Web Crypto API.
Frequently asked questions
