When should I use it?
Use UUID Generator when you need a private, upload-free browser tool for this task.
Online Security Utility
UUID Generator
Bulk UUID generation with v4, v7 and NIL support.
100% Browser-Based — Web Crypto & local processing only. Your secrets never leave this device.
✓ Browser Processing
✓ No Upload
✓ Privacy First
✓ Free Forever
✓ Works Offline
Tool Options
Working…
Result
Results will appear here…
FreeConverter.app Guide
What does UUID Generator do?
Generate UUID v4, v7 and NIL UUIDs in bulk.
Who is it for?
Developers, marketers, students, and anyone who needs a free browser utility.
Example input
Paste text, markup, or choose a local file (processed only in this browser tab).
Example output
Instant on-device result you can copy or download — nothing leaves your device.
Browser processing100% in-browser
PrivacyLocal Processing
UploadNot required
DifficultyEasy
How It Works
Private security utilities powered by Web Crypto in your browser.
1
Paste or upload
Enter text or drop a file. Everything processes locally with Web Crypto.
→
2
Process privately
Hashes, passwords and QR codes run in your browser — nothing is uploaded.
→
3
Copy or download
Export TXT, JSON or images instantly.
Zero server upload — hashes and secrets stay on your device.
About UUID Generator
Generate UUID v4, UUID v7 and NIL UUIDs in bulk. Upper/lowercase, strip hyphens, export TXT/CSV/JSON — browser CSPRNG. Built for developers, students and security practitioners who need private, offline-capable browser tools.
FAQs
No. All security tools process data in your browser using Web Crypto and local libraries. FreeConverter servers never receive your input.
No. Passwords and hashes never leave your device and are not saved on our servers.
Yes. FreeConverter.app browser security tools are free to use.
No. FreeConverter.app processes this tool locally in your browser. Your input is not uploaded to our servers.
No. UUID Generator on FreeConverter.app is free to use without creating an account.
Developers, marketers, students, and anyone who needs a free browser utility.