pack.mcmeta generator

Pick the Minecraft versions your pack is for. You get a pack.mcmeta with the right numbers, or a ready empty pack as a zip. The pack format of every version is in the table below.

Pack type From to

Description Namespace

pack.png for the zip

Pack format of every Minecraft version

The number in pack.mcmeta tells the game which version a pack was made for. Resource packs and data packs count separately. From 1.21.9 on the number has two parts, such as 94.1.

Minecraft Java version	Resource pack format	Data pack format

Releases only, from the Minecraft Wiki's pack format page, checked on 14 November 2026. Snapshots have numbers in between.

How pack.mcmeta works now

Up to 1.21.8 a pack names one number: "pack_format": 64. A pack for several versions adds "supported_formats": [34, 64], which the game understands from 1.20.2 on.
From 1.21.9 (resource format 65, data format 82) the game reads "min_format" and "max_format" instead. A whole number as max_format covers every small step of that number.
A pack for both sides of that change needs all four: pack_format and supported_formats for the old versions, min_format and max_format for the new ones. A pack for new versions only must leave the two old fields out.
The file sits in the top folder of the pack, next to assets or data, and must be named exactly pack.mcmeta. If the game says "Made for an older version" or "newer version", the number does not match; the pack usually still loads.
Covering many versions with one pack only works when the files inside are valid in all of them. Folder names in data packs changed in 1.21 (functions became function, and so on), and item models changed in 1.21.4.

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