UUID Generator

How to Use UUID Generator

Select the UUID version you need using the version selector: Version 4 produces fully random identifiers suitable for most general-purpose use cases like database primary keys or session tokens, while Version 1 generates timestamp-based UUIDs that encode the creation time and can be useful when you need identifiers that are naturally sortable by creation order. Next, set how many UUIDs you want using the Count field, supporting anywhere from a single UUID up to 50 at once, which is handy when you need to pre-populate test data or seed a database. As soon as you adjust either setting, the tool generates your UUIDs instantly and lists them below, each on its own line for easy scanning. Use the 'copy all' button to grab every generated UUID at once, ready to paste directly into a SQL script, config file, or test fixture. If you need the UUIDs in a more structured format, the 'download as CSV' button saves them to a file you can import directly into a spreadsheet or database tool. Version 4 UUIDs are generated using the browser's built-in `crypto.randomUUID()` function for cryptographically strong randomness, while Version 1 UUIDs are constructed using a timestamp-based algorithm implemented directly in the tool — both run entirely client-side with no network calls involved.