Random UK Sort 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 sort codes you need, from one up to your required batch size.
2. Choose a format — hyphenated (20-00-00), plain (200000), or spaced (20 00 00) — to match your application's expected input.
3. Toggle the Include Account Number option to 'Yes' if you need complete sort code and account number pairs for two-field testing.
4. Click Generate to produce the list of fictitious sort codes instantly.
5. Copy the output and paste it directly into your test fixture, seed script, CSV file, or mock API payload.

Use Cases

• •Seeding a Postgres staging database with hundreds of synthetic UK bank records for load testing
• •Triggering sort code and account number validation logic in a React payment form using a Jest fixture
• •Populating Postman mock responses for an open banking API that expects full UK bank detail objects
• •Generating paired sort code and account number rows for a Cypress end-to-end test of a BACS submission flow
• •Creating realistic-looking bank detail fields for fintech product screenshots and Figma prototype demos

Tips

• →Select the plain format when seeding a SQL database — most schemas store sort codes as char(6) without separators.
• →Use paired account numbers when testing validation libraries like uk-modulus-checking, which expects both fields together.
• →Generate a batch of 50+ codes at once for stress-testing forms that must handle bulk bank detail uploads.
• →If your form auto-formats user input (inserting hyphens as they type), test it with the plain format output to verify the formatter fires correctly.
• →For screenshots and marketing demos, the hyphenated format looks most authentic to UK users — avoid plain strings in public-facing mockups.
• →Cross-check a handful of generated codes against the EISCD lookup in your staging environment to confirm your app handles 'unknown sort code' responses gracefully.

FAQ