UUID Generator Guide
Reference for generating UUIDs for fixtures, prototypes, sample records, test data, and non-sensitive identifiers.
Quick answer
Use the UUID Generator when you need random-looking identifiers for fixtures, sample records, prototypes, seed data, or documentation examples.
What this tool does
The generator creates UUID values in the browser. UUIDs are useful as unique labels, but they do not prove identity, ownership, or authorization.
Step-by-step use
- Choose how many IDs you need.
- Generate the UUIDs.
- Copy the list.
- Keep IDs separate from real user data.
- Use a sortable format such as ULID if ordering is important.
Data handling and processing behavior
Processing is handled in the browser for this tool based on the current public implementation.
Examples
Mock records
Generate IDs for sample rows before creating a demo JSON payload.
Docs examples
Use placeholder UUIDs in API documentation without reusing real production IDs.
QA fixture review
For a test fixture, generate a small batch and label the records as synthetic before sharing them. UUIDs are useful as stable identifiers in examples, but they do not prove ownership, authorization, or randomness quality for a security-sensitive workflow. Use separate sample IDs for docs, tests, and screenshots to avoid confusion.
Assumptions and limits
- UUIDs are identifiers, not secrets.
- A UUID should not be used as the only access-control mechanism.
- Random UUIDs do not sort by creation time.
- Some systems require a specific UUID version or format.
Common errors
Using IDs as passwords
Identifiers can be copied, logged, and shared; they are not credentials.
Mixing real and fake records
Keep generated sample IDs away from production data exports.
Next steps
- UUID Generator — generate UUIDs
- ULID Generator — generate sortable IDs
- NanoID Generator — generate compact IDs