HASH & SECURITY
Free UUID Generator online
Generate random UUID v4 identifiers.
Use UUID Generator to generate random UUID v4 identifiers in seconds, straight from your browser. Paste your settings into UUID Generator, tweak the options, and take the result with one click. UUID Generator processes everything in your own browser, so your data never leaves your device.
- Free to use
- No signup
- Private and local
- Unlimited use
Why use UUID Generator
- generate random UUID v4 identifiers without installing software
- Your settings is processed on your device by UUID Generator, never uploaded
- UUID Generator needs no account, email address or payment details
- UUID Generator shows live output that updates as you type
- UUID Generator is keyboard accessible and screen-reader friendly
- UUID Generator is free forever, with no watermark on the result
UUID Generator runs entirely inside your browser. Your settings is never uploaded, stored or shared, and nothing is retained once you close the tab.
How to use UUID Generator
- Enter your settings Paste or type your settings into the input panel above.
- Adjust the options Set the options that control how UUID Generator handles your input.
- Apply the change UUID Generator works instantly on your device, with no queue and no upload wait.
- Copy or download Copy the output to your clipboard or download it as a file, free and unlimited.
Benefits
Private by design
Your settings stays on your device while UUID Generator works. UUID Generator never sends it to a server, so confidential work stays confidential.
Instant results
UUID Generator finishes most jobs in under a second because the work happens on your own hardware.
No signup, no limits
Use UUID Generator as many times as you want. UUID Generator asks for no account, adds no watermark and keeps no paid tier gating the output.
Works on any device
UUID Generator runs in any modern browser on desktop, tablet and phone, with a keyboard-accessible interface throughout.
Who it is for
For legal and finance teams
Legal and finance teams use UUID Generator to handle sensitive documents without installing software: generate random UUID v4 identifiers on a shared or locked-down machine.
For HR and admin teams
UUID Generator helps HR and admin teams process paperwork quickly, since your settings never leaves the laptop it was created on.
For freelancers
UUID Generator helps freelancers send client deliverables quickly, since your settings never leaves the laptop it was created on.
How it works
UUID Generator builds its output from the parameters you choose using the browser's own APIs, including the cryptographic random source where randomness is required. Because UUID Generator generates locally, the values exist only on your device until you copy or download them.
Frequently asked questions
Is UUID Generator free to use?
Yes. UUID Generator is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.
Does UUID Generator upload your settings to a server?
No. UUID Generator processes your settings inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.
Is there a limit on how much input I can use?
UUID Generator handles inputs into the megabytes without trouble; the only real limit is how much your browser tab can hold in memory.
Do I need to install anything to use UUID Generator?
No installation is needed. UUID Generator runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.
Can I use UUID Generator on a phone or tablet?
Yes. The UUID Generator interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.
What happens to your settings when I close the tab?
It is discarded. UUID Generator keeps everything in temporary browser memory, so closing the tab removes every trace of the session.
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Last updated: 2026-09-07