UUID Generator — Random UUID
Generate v4 random or v1 timestamp-based UUIDs in bulk, ready to copy or export.
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. This makes it easy to guid generator without any setup.
Why Use Our UUID Generator?
UUIDs are the standard way to generate unique identifiers across distributed systems, but writing a quick script just to generate a handful of test IDs is overkill for most day-to-day needs. Our UUID Generator produces cryptographically random Version 4 IDs using the browser's native `crypto.randomUUID()` function, ensuring the same quality of randomness you'd get from a production-grade library, alongside Version 1 support for cases where a sortable, timestamp-embedded ID is preferable. Being able to generate up to 50 at once and export them as CSV saves real time when populating test databases or writing example fixtures, compared to generating them one at a time. Since everything runs locally in your browser, there's no server logging your generated IDs or rate-limiting how many you can create. It's free, fast, and available instantly whenever you need a batch of unique identifiers for development, testing, or documentation purposes. Whether you need uuid v4 or just want a quick result, this tool handles both.
Frequently Asked Questions
Is the UUID Generator free to use?
Yes. The UUID Generator is completely free with no usage limits, no signup, and no hidden fees.
Do I need to create an account?
No account or signup is required. Just open the tool and start using it immediately.
Is my data safe when using this tool?
Yes. All processing happens directly in your browser, so your data is never uploaded to a server or stored anywhere.
Does the UUID Generator work on mobile devices?
Yes, the tool is fully responsive and works on any modern browser, including mobile phones and tablets.
How does guid generator work?
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. Everything runs directly in your browser, so guid generator takes only a few seconds.
What about uuid v4?
UUIDs are the standard way to generate unique identifiers across distributed systems, but writing a quick script just to generate a handful of test IDs is overkill for most day-to-day needs. That covers uuid v4 too — the same tool handles it with no extra steps, settings, or downloads.
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