JWT Decoder
Decode JWT tokens to inspect header and payload claims.
- Browser-based
- No signup
Developer
Create UUID version 4 (random) or version 7 (time-ordered) identifiers in your browser. Generate one or many at once, with optional uppercase and hyphen formatting. UUIDs are never stored.
Choose options and generate UUIDs.
Create UUID version 4 (random) or version 7 (time-ordered) identifiers in your browser. Generate one or many at once, with optional uppercase and hyphen formatting. UUIDs are never stored.
Use the UUID Generator form near the top of this page. Enter the values you know, run the tool, and review the results panel. You can change inputs and run it again. Processing stays in your browser and is not uploaded to Utilnivo servers.
Example: open UUID Generator, enter a realistic set of inputs for your situation, and note the primary result. Change one input—such as an amount, rate, or option—and compare how the output changes so you can choose a scenario that fits your needs.
Second example: try edge cases that matter for your task—such as zero values, a different unit system, or a second file—and confirm the tool shows a clear result or a helpful validation message.
Choose UUID version 4 (random) or version 7 (time-ordered), how many to generate, and formatting options. UUIDs are created in your browser with the Web Crypto API and are not stored or sent to a server.
This tool runs in your browser for convenience. Results are estimates or transformations based on the inputs you provide and may not cover every edge case.
Version 4 UUIDs are fully random. Version 7 UUIDs start with a Unix timestamp in milliseconds, so they sort roughly by creation time while still including random bits.
The generator uses the Web Crypto API (crypto.randomUUID for v4 and crypto.getRandomValues for v7) for cryptographically strong randomness.
No. UUIDs are generated in your browser and are not logged or sent to a server.