Developer
UUID Generator
Use a UUID generator to create v4 UUIDs, GUIDs, and random unique IDs for records, fixtures, and test data.
Generator settings
Adjust the count and output format, then generate a new set of v4 UUIDs, GUIDs, or random unique IDs for your workflow.
Generated UUIDs
The list updates when you change the settings or click generate again.
- 018f12a3-4c5d-4d6e-8f71-1a2b3c4d5e6f
- 1a2b3c4d-5e6f-4a7b-8c9d-0e1f2a3b4c5d
- 2b3c4d5e-6f71-4a8b-9c0d-1e2f3a4b5c6d
Why a UUID generator is useful
UUIDs are a simple way to create identifiers that are extremely unlikely to collide. That makes a UUID generator useful for database records, temporary fixtures, form submissions, and any workflow where you need stable-looking IDs without coordinating a central counter.
A browser-based UUID generator is especially handy during development because it keeps the flow fast and removes the need to switch to another tool when you need a fresh identifier right away. For many users, the same page also works as a GUID generator or unique ID generator because the search intent is similar even when the naming differs.
How to use this UUID generator
Choose how many UUIDs you want, pick a display format, and the list updates with new values. The count control helps when you need a single identifier or a batch of fixtures, while the format selector keeps the output compatible with different systems.
If you want to reuse the current set, copy the full list to your clipboard and paste it into your editor, spreadsheet, or test file. That makes the page useful as a random ID generator when you need several values quickly instead of one ID at a time.
Which UUID format should you choose
Standard UUIDs use the familiar 8-4-4-4-12 layout. Uppercase output can be helpful when another system expects capital letters, compact output is useful when you want the identifier without separators, and braced output matches older tooling conventions.
The best choice depends on the target system, but the underlying identifier stays the same across each format. If you are specifically looking for a v4 UUID generator, the standard format is usually the one most systems expect by default.
When to use a 32-character alphanumeric ID
Sometimes a UUID is more structure than you need. A 32-character alphanumeric identifier is useful when you want a shorter string that is still easy to paste into database records, test fixtures, URLs, or internal dashboards.
This option keeps the output compact while avoiding punctuation, which can make it easier to work with in environments that prefer simple identifier strings over the standard UUID layout.
UUIDs in development workflows
Development teams often need placeholder identifiers for API payloads, database seeding, test fixtures, and form submissions. UUIDs work well in those scenarios because they are easy to generate locally and easy to paste into code without coordinating a shared sequence.
When you are sketching out a workflow, a UUID generator removes friction by giving you a reliable identifier immediately. That keeps the focus on the structure of the data rather than on building an identifier service first, and it also makes the page useful as a quick UUID creator for test data and development notes.
How this UUID page helps users
UUIDs are most useful when you need a collision-resistant identifier for a record, fixture, API payload, or temporary draft. This page keeps those cases front and center so the generator is easy to use for real work instead of acting like a generic text box with random output.
The format controls are there because different systems want different shapes of identifiers. Standard UUIDs fit most databases, compact and braced values match older tooling, uppercase output can satisfy strict parsers, and the 32-character alphanumeric mode is useful when a shorter, punctuation-free string is easier to store or paste.
Because people search in different ways, the same tool can serve users looking for a UUID generator, GUID generator, unique ID generator, or random ID generator. Keeping those use cases aligned helps the page match real search language without changing what the tool actually does.
FAQ
What kind of UUID does this generator create?
This page creates version 4 UUIDs using the browser crypto API so the output stays suitable for records, fixtures, and test data.
Can I copy more than one UUID at once?
Yes. The copy button sends the current list to your clipboard as line-separated values.
When should I use compact or braced output?
Use compact output when you need a hyphen-free identifier, and use braced output when another tool expects legacy brace-wrapped UUIDs.
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