What is the difference between OTP and TOTP?
A generic OTP may be generated randomly, while a TOTP is derived from a shared secret and the current time.
Security
OTP Generator
Generate secure numeric or alphanumeric one-time codes locally in your browser.
Tool
OTP Generator
Generate secure numeric or alphanumeric one-time codes locally in your browser.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this OTP generator to create random verification codes for prototypes, tests and development. It generates independent codes and does not operate as a complete authentication service.
Examples
- Generate a 6-digit OTP
- Generate an 8-digit verification code
- Generate an alphanumeric OTP
Frequently Asked Questions
How long should an OTP remain valid?
Short validity periods are safer. The appropriate duration depends on the authentication flow and delivery method.
Does this tool send the OTP?
No. It only generates codes locally and does not send email or SMS messages.
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