UUID / ULID / Nano ID
Generate UUID v4, UUID v7, ULID or Nano ID — single or batches, optionally lowercased.
Also known as: GUID generator, ULID generator, Nano ID generator.
100% offline · macOS, Windows & Linux · free for personal use

// overview
What it does
UUID / ULID / Nano ID is one of 55 tools in Hexkit, a desktop developer toolbox that runs entirely on your own machine. Generate UUID v4, UUID v7, ULID or Nano ID — single or batches, optionally lowercased.
Because Hexkit is a native app rather than a web page, anything you paste into the uuid / ulid / nano id stays local — there are no uploads, no accounts and no telemetry. You can generate IDs, hashes and test data even with the network turned off, which makes it safe for tokens, keys and production data.
// steps
How to use UUID / ULID / Nano ID
- 1
Open Hexkit and select "UUID / ULID / Nano ID", or press the command-palette key and start typing its name.
- 2
Pick your options. Generate UUID v4, UUID v7, ULID or Nano ID — single or batches, optionally lowercased.
- 3
Read or copy the result. Everything is computed locally by Hexkit's Rust core, so nothing is ever uploaded.
Tip: the command palette opens any tool in one keystroke.
// faq
Frequently asked questions
- Is UUID / ULID / Nano ID free?
- Yes. UUID / ULID / Nano ID is part of Hexkit, which is free for personal and non-commercial use on macOS, Windows and Linux.
- Does UUID / ULID / Nano ID work offline?
- Completely. Hexkit runs every tool locally with no network access, so UUID / ULID / Nano ID works on a plane or an air-gapped machine.
- Is my data uploaded anywhere?
- No. Hexkit makes no network calls and has no telemetry — whatever you paste stays on your computer.
- Which ID formats are supported?
- UUID v4 (random), UUID v7 (time-ordered), ULID and Nano ID. You can generate one or a whole batch at once and optionally lowercase the output.
- Are the UUIDs cryptographically random?
- Yes. Random IDs use your operating system's cryptographically secure RNG via the Rust core, generated locally with no network involved.
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Related tools
Use UUID / ULID / Nano ID without sending your data anywhere.
UUID / ULID / Nano ID ships inside Hexkit — a free, offline developer toolbox for macOS, Windows and Linux. No account, no uploads.