Random 6-Digit Code Generator

How to use

1. 1️⃣
   Choose your options above
2. 2️⃣
   Click Generate
3. 3️⃣
   Copy your result

Detailed instructions

1. Set the Count field to the number of codes you need, from 1 to as many as required.
2. Adjust Code Length if you need something other than 6 digits — 4 for PINs, 8 for longer tokens.
3. Toggle Allow Leading Zeros to Yes if your system treats codes as strings, or No to avoid them.
4. Set No Duplicates to Yes when generating a batch that must have no repeated codes.
5. Click Generate, then copy the output list and paste it into your test file, spreadsheet, or database.

Use Cases

• •Seeding a PostgreSQL staging table with 100 unique OTP codes for integration tests
• •Stress-testing leading-zero handling in a Node.js or Python SMS verification service
• •Generating pre-printed 8-digit access codes for a paper-based event registration form
• •Populating a Cypress fixture file with mock 2FA codes for end-to-end auth flow tests
• •Creating 4-digit PIN codes for an ATM or kiosk UI prototype in Figma or Storybook

Tips

• →Test with leading zeros ON first — most OTP bugs stem from code being cast to an integer and losing the leading digit.
• →Pair the 6-digit output with a timestamp column in your spreadsheet to simulate realistic expiring verification data.
• →For UI mockups, generate 3-5 codes and hard-code them so reviewers can actually 'verify' during a demo walkthrough.
• →If your system enforces a code blacklist, generate a large unique batch and use it to pre-populate the banned-codes table for edge-case testing.
• →Switch length to 4 and disable leading zeros to get a clean distribution of 1000–9999 for numeric ID ranges that must stay within four digits.
• →When seeding QA databases, generate slightly more codes than you need and delete extras — it is faster than rerunning when you hit an off-by-one count.

FAQ