totp-generator is a lightweight offline TOTP generator based on RFC 6238, ideal for developers, testers, and security engineers.
It works entirely offline and is perfect for debugging or validating your backend's TOTP implementation.
🔗 Recommended Online Tool
If you prefer generating TOTP codes directly in your browser with no installation, try:
TOTP Generator Online: tool.tl/totp-generator
It is simple, cross-platform, and great for quick testing.
🌟 Key Features
- Offline operation
- Standard RFC 6238 algorithm
- Cross-platform
- Instant TOTP generation
❓ FAQ
1. Must the Secret be Base32?
Yes, Base32 is the common encoding used by most TOTP/2FA apps.
2. Is it suitable for production authentication?
It's recommended primarily for development and testing rather than as the main end-user 2FA app.
3. Does it support otpauth URIs?
Some implementations can parse otpauth:// URIs or QR codes.
📌 Summary
Both the CLI version and the online tool at tool.tl/totp-generator provide quick and reliable ways to generate TOTP codes for development and testing.