Codes and Test Data
Random OTP Code Generator
Generate one time codes of any digit length for testing sign in flows and message templates.
Random OTP Code Generator
6 digit code
How many codes
Code length
Generate one time codes
This tool makes random one time passcodes of the length you choose, the numeric codes sent for two factor sign in and verification. Pick four, six or eight digits and generate a single code or a batch for testing.
Why six digits is common
Six digit codes are the usual choice for authenticator apps and text message verification, striking a balance between being easy to type and hard to guess in the short window they are valid. The tool defaults to six but offers four and eight as well.
For testing and demos
These codes are handy for building and testing sign in flows, filling message templates, or demonstrating a verification screen. Every digit is drawn from the browser cryptographic random source, and nothing leaves your device.
Popular generators
Frequently asked questions
What is an OTP
A one time passcode, the short numeric code used to confirm a sign in or a transaction. It is meant to be used once and then discarded.
What lengths are supported
Four, six or eight digits. Six is the most common for authenticator apps and text codes.
Can I generate several at once
Yes, up to 500 codes at a time, ready to copy or export for testing.
Are these real login codes
No. They are random codes for testing and demos. They do not unlock any real account.
Is it free
Yes, free and with no sign up.
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For a personal identification number see the PIN code generator, or a product key with the serial number generator.