UUID Generator
Generate v4 UUIDs.
About UUID Generator
UUID Generator is a free online generator that creates useful output in seconds. Generate v4 UUIDs. It is designed for creators, developers, students and office users who need quick results without signup or installation. Adjust the settings, generate the result, then copy or download it for your project, document, website or workflow.
How to use
- 1Enter the prompt, text, URL, color or settings required for the generator.
- 2Choose any length, style, format or output options available on the tool.
- 3Click generate to create a fresh result.
- 4Preview the output and generate again if you want a different version.
- 5Copy, download or save the final result for your project.
Features
- Free to use with no account required
- Works in a modern desktop or mobile browser
- Simple interface designed for fast repeat use
- Results are easy to copy, reuse or download
- Creates fresh output instantly from your chosen settings
- Useful for design, coding, content and productivity projects
Privacy
ToolHub is built with privacy in mind. UUID Generator is designed to process your input with minimal friction, and most browser-based tasks happen locally whenever possible. For best privacy, avoid entering passwords, private financial records or highly sensitive personal information into any online tool, and clear the input area after you finish.
Frequently asked questions
What is a UUID?
A 128-bit identifier that is unique enough to be used without coordination — ideal for distributed systems.
Are these UUIDs unique?
v4 UUIDs have ~5.3×10^36 possible values; collisions are astronomically unlikely.
Are they cryptographically secure?
Yes — generated via the Web Crypto API, suitable for tokens and IDs.
What version is generated?
Version 4 (random). v1 (time-based) and v7 (sortable) are on the roadmap.
Can I get UUIDs without hyphens?
Yes — toggle the hyphen option to get a 32-character hex string instead.