UUID Generator

Generate random UUIDs (v4) online. Batch generate multiple UUIDs at once — free and fast.

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Click Generate to create UUIDs

How to Use

Encode text to Base64 or decode Base64 back to text. Simple, fast, and entirely browser-based.

Encode text to URL-safe format or decode URL-encoded strings back to plain text. Fast and entirely browser-based.

Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, kebab-case, and more. Instant results.

Test regular expressions online with real-time match highlighting. Supports all JS regex flags. Instant feedback.

What version of UUID is generated?

We generate UUID v4, which is based on random numbers. It's the most commonly used UUID version.

Are the UUIDs truly unique?

UUID v4 uses 122 bits of randomness. The probability of collision is astronomically low — you'd need to generate billions per second for decades.