Password Generator
Free strong random password generator with custom length and character sets. Cryptographically secure and generated 100% on your device.
UUID Generator
Click Generate to create RFC 4122 version-4 UUIDs using your browser's cryptographic random number generator. Generate up to 500 at once and copy them all.
Private by default: processing stays on your device
Example output
Input
Count: 3
Output
9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d 1c9e7f2a-8f43-4e6b-b1b2-52e8c1a86b6e 7d444840-9dc0-41a3-b366-7ec56e35a1f5
These buttons share the page link, not your input.
Want to include your text?
Your current input will be stored in the link after the # symbol, not uploaded to HandyBrowserTools. Anyone with this link can read that text. If you send or post it, the service you choose also receives the link. Do not include passwords or private information.
Frequently asked questions
Are these UUIDs really unique?
UUID v4 has 122 random bits. The chance of two ever colliding is astronomically small (you'd need to generate billions per second for centuries). They're safe to use as database keys and identifiers.
Are the UUIDs generated securely?
Yes. They come from crypto.randomUUID / crypto.getRandomValues, the browser's cryptographically secure RNG, and never leave your device.
What's the difference between UUID and GUID?
Nothing practical: GUID is Microsoft's name for the same 128-bit identifier format.
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