UUID Generator
Generate UUID v4 identifiers instantly. Create single or bulk UUIDs with options for uppercase and no-dash formats.
About UUID v4
UUID (Universally Unique Identifier) version 4 uses random numbers to generate a 128-bit identifier. The format is xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where x is any hex digit and y is one of 8, 9, a, or b.
With 122 random bits, the probability of generating a duplicate is astronomically low — you'd need to generate about 2.7 quintillion UUIDs to have a 50% chance of collision.
Generated using crypto.randomUUID() for cryptographically secure randomness. All processing happens locally in your browser.
How This Tool Was Built
This tool was created entirely by AI. Here's the exact prompt used to generate it:
Prompt Used
Create a UUID Generator tool with these features: 1. Generate single UUID button 2. Bulk generation option (1-100 UUIDs) 3. Options: - Uppercase toggle - Remove dashes toggle 4. Display generated UUIDs in a list with dark background 5. Copy individual UUID button for each 6. Copy all UUIDs button 7. Clear button 8. Use crypto.randomUUID() for secure generation 9. Info box explaining UUID v4 format and collision probability Make it clean with cyan as the accent color. Emphasize client-side generation.
Claude AI Model
5,200 Tokens Used
AI-Generated Code Origin