Generator Settings
Configure UUID generation options
UUID v4 (Random)
Random UUID - most commonly used
UUID v1 (Time-based)
Based on timestamp and MAC address
UUID v3 (MD5)
Based on namespace and name using MD5
UUID v5 (SHA-1)
Based on namespace and name using SHA-1
Nil UUID
All zeros - 00000000-0000-0000-0000-000000000000
1100
Generated UUIDs
No UUIDs generated yet
Click "Generate UUIDs" to create your first UUID
UUID Information
UUID Versions
- v1: Time-based with MAC address
- v3: Name-based using MD5 hashing
- v4: Random or pseudo-random
- v5: Name-based using SHA-1 hashing
- Nil: Special case of all zeros
Common Use Cases
- • Database primary keys
- • API request/response IDs
- • File names and identifiers
- • Session tokens
- • Distributed system IDs
About UUID Generator
Generate UUIDs v4 and other versions instantly.
UUID Generator is a free developer tool on AllYour.Tools, built for fast everyday use directly in your web browser. It is designed for people searching for UUID Generator online, a free UUID Generator tool, or a private browser-based alternative that works without installing extra software.
The tool runs locally in your browser whenever possible, so your files, text, and settings stay on your device instead of being uploaded for server-side processing. That makes it useful for quick personal tasks, developer and creator workflows, and privacy-sensitive work where speed and control matter.
How to use UUID Generator
- Open UUID Generator in your browser.
- Add the text, file, or settings the tool asks for.
- Review the result on the page and adjust the options if needed.
- Copy, download, or use the result in your workflow.