ISBN Batch Generator
Generate batches of internal 13-digit codes with valid ISBN check digits. Useful for internal inventory IDs shaped like ISBNs (for test data, mock catalogs, or private numbering schemes).
⚠️These are not real ISBNs. Real ISBNs must be purchased from your country's ISBN agency. Use these only for internal identifiers, testing, or mock data.
Preview · 20 codes
| #1 | 979-399900001-4 | |
| #2 | 979-399900002-1 | |
| #3 | 979-399900003-8 | |
| #4 | 979-399900004-5 | |
| #5 | 979-399900005-2 | |
| #6 | 979-399900006-9 | |
| #7 | 979-399900007-6 | |
| #8 | 979-399900008-3 | |
| #9 | 979-399900009-0 | |
| #10 | 979-399900010-6 | |
| #11 | 979-399900011-3 | |
| #12 | 979-399900012-0 | |
| #13 | 979-399900013-7 | |
| #14 | 979-399900014-4 | |
| #15 | 979-399900015-1 | |
| #16 | 979-399900016-8 | |
| #17 | 979-399900017-5 | |
| #18 | 979-399900018-2 | |
| #19 | 979-399900019-9 | |
| #20 | 979-399900020-5 |
🔒 100% private — generation runs locally in your browser.
Processed in your browser — your file is not sent to any server
How to Use
- 1
Set a prefix
Start with 978 or 979 plus your internal identifier digits (total 4–11 digits).
- 2
Pick a starting number and count
Sequential numbers fill the remaining digits before the check digit.
- 3
Copy or export
Copy all codes, or download the batch as CSV with sequence numbers.
Common Use Cases
- Internal inventory IDs for a private catalog
- Test/mock data for book database development
- Placeholder identifiers before purchasing real ISBNs
- Numbering schemes for zines or self-published prints