UUID Validator
UUID Validator
Validate UUID format, variant bits, and detect version for each line.
File input
Choose a file
Click, drop, or paste from clipboard.
Result
Ready to validate UUIDs.
Compact and hyphenated UUID formats are both supported.
Flow
- Normalize UUID input and inspect each line.
- Validate hex structure with or without hyphens.
- Check version nibble and variant bits for RFC compliance.
Example
Worked example: mixed UUID list
- 1 Paste two valid UUIDs and one malformed ID.
- 2 Validator checks each line independently.
- 3 Output reports version for valid rows and flags invalid rows.
You get a clear per-line validation summary and overall valid/invalid counts.
How
- Paste one or multiple UUID values, one per line.
- Run validation to classify valid and invalid rows.
- Review detected UUID versions for valid values.
Cases
- Validate imported UUID columns before database migration.
- Audit API responses that should return canonical UUIDs.
- Spot malformed IDs in ETL and queue payloads.
Avoid
- Assuming any 32-character hex string is valid without variant/version checks.
- Mixing UUID text with extra whitespace or labels in the same line.
- Treating uppercase/lowercase differences as validity errors.
FAQ
Does this support compact UUID strings without hyphens?
Yes, compact 32-character UUID strings are supported and validated.
Can I validate many UUIDs at once?
Yes, input is processed line by line for batch validation.
Does validator show UUID version?
Yes, valid rows include detected version information.
Switch
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