UUID Generator
Generate cryptographically random RFC 4122 v4 UUIDs in bulk for Minecraft Bedrock pack manifests, player profiles, and attribute modifiers.
Supports standard hyphenated UUIDs, compact UUIDs, and Java integer-array [I;...] NBT format.
How to Use UUID Generator
- 01.Select how many UUIDs you want to generate (1 to 50) and choose formatting options (uppercase, hyphens, or Java NBT [I;...] array).
- 02.Click Generate New UUIDs.
- 03.Copy individual UUIDs or click Copy All for immediate use in manifest.json or NBT commands.
How It Works
Uses the browser Web Crypto API (crypto.randomUUID) and 32-bit signed integer bit-splitting for Java 1.16+ NBT UUID arrays.
Supported Formats & Outputs
- • Standard UUID v4 (xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx)
- • Hyphenless UUID
- • Java NBT [I; a, b, c, d]
Common Questions about UUID Generator
Do header and modules in Bedrock manifest.json need different UUIDs?
Yes! Every header and module section in a Bedrock manifest.json must have its own unique UUID.
Related Minecraft Tools
View all in Minecraft Add-on & Mod Tools →
Bedrock Add-on Manifest Generator
Build valid Minecraft Bedrock Edition manifest.json files for Behavior Packs, Resource Packs, Script API modules, and pack dependencies.
MCAddon Packager
Package Minecraft Bedrock Behavior Packs and Resource Packs into ready-to-install .mcaddon or .mcpack files right in your browser.
Add-on Validator
Validate Bedrock manifest.json files or .mcpack/.mcaddon archives for JSON syntax, required fields, UUID collisions, and version arrays.
Minecraft Skin Editor
Draw, erase, pick colors, and edit 64×64 Minecraft skin textures with a live interactive 3D character preview.