UUID Hex Data pack for Minecraft 1.21.1, 1.21
High-performance library for formatting UUIDs into hexadecimal strings.
- views
- 49 views
- Updated
- Updated 20.04.2026
- 1.20.3 — 26.2
Data pack- Client and server
✅ Features
- Efficiently converts UUIDs to hex format
- Optimized for speed by relying on a precomputated hexadecimal range (0000-FFFF), increasing static data usage
📖 Usage
Call the uuid:_ function as an entity and use its output in storage uuid:out plain\ Alternatively, assign a 4-integer array to storage uuid:in UUID, then call the uuid:convert function to format it.
How to install UUID Hex
With Millida Launcher
Install Millida Launcher
The launcher is free: download it at millida.net/launcher and sign in with any nickname.
Click “Install” on this page
The launcher opens and installs the data pack for Minecraft 1.20.3–26.2 automatically.
Launch the game
A profile with it appears in the launcher: click “Play”.
Manually
Download the archive
Pick the file UUID-Hex.zip (287 KB) for your game version.
New world: “Data Packs”
When creating a world, click “Data Packs”, drag the archive into the window, then move it to “Selected”.
Existing world: the datapacks folder
Put the archive into saves/<world>/datapacks and type /reload in game.
On a server
Archive goes into the server world’s datapacks
The world/datapacks folder on the server; players do not need to install anything.
Reload the data
Type /reload in the server console or restart the server.
Use the “To server” button
On Millida Hosting, the button at the top of the page uploads the file to your server and restarts it for you.
Versions
With dependencies
| Minecraft | Loader | File | Date | Actions |
|---|---|---|---|---|
| 26.2 | Data pack | 26.2287 KB | ||
| 26.1 | Data pack | 26.1287 KB | ||
| 1.21.11 | Data pack | 1.21.11287 KB |
FAQ
Which Minecraft versions does UUID Hex work on?
There are files for 1.20.3–26.2, 20 versions in total. The newest is 26.2.
Does UUID Hex work on a server?
Yes: the data pack goes into the datapacks folder of the server world, and players do not need to install anything.
Where can I download UUID Hex safely?
On this page: the file UUID-Hex.zip (287 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 3580456250445ccc4ccc2f4b17e770dd2eb1fe68.
Reviews
Be the first to rate UUID Hex
