UUID v4 Generator, Manifest Generator & Validator

Generate cryptographic v4 UUIDs, create ready-to-import Minecraft Bedrock manifest.json files, and validate or auto-fix broken manifests.

1. Bulk UUID v4 Generator

xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx

2. Bedrock manifest.json Generator

Creator

Fill in your pack details below to generate a brand-new, standards-compliant Minecraft Bedrock manifest.json with two unique v4 UUIDs.

3. manifest.json Validator & Auto-Fixer

6-Point Check

Paste any broken manifest.json or upload a file to detect syntax errors, duplicate UUID collisions, or missing fields — and repair them in 1 click!

•Valid JSON Syntax
•format_version (1 or 2)
•Valid header.uuid (v4)
•Valid modules[].uuid (v4)
•No Duplicate UUID Collision
•Valid Version & Engine Arrays
Manifest is 100% valid and ready for Minecraft Bedrock import!

Frequently Asked Questions

What is a UUID v4 and why does Minecraft need it?
A UUID v4 is a 36-character universally unique identifier. In Minecraft Bedrock Edition, every resource pack, behavior pack, and add-on requires unique UUIDs inside manifest.json so the game can distinguish your pack from others without conflicts.
Why does my pack fail to import with a "Duplicate Pack" or "Failed to Import" error?
Minecraft throws a duplicate or import error when either your header.uuid matches an already-installed pack OR your header.uuid and modules[0].uuid are identical. Paste your file into the Validator & Auto-Fixer above and click 1-Click Auto-Fix & New UUIDs to assign two brand-new, non-colliding UUIDs automatically.
What is the difference between the Manifest Generator and the Manifest Validator?
The Manifest Generator creates a brand-new manifest.json from scratch when you are making a new Resource Pack, Behavior Pack, or Skin Pack. The Manifest Validator & Auto-Fixer inspects an existing manifest.json across 6 diagnostic checks and repairs broken commas, missing fields, or duplicate UUIDs.
Is this compatible with Minecraft Bedrock 1.20 and 1.21+?
Yes, 100%. Both the UUID v4 generator and the manifest.json studio follow the official Minecraft Bedrock format_version: 2 schema.