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JMX

JMX

MOD
JSON Model Extensions for Fabric
by GrondagTheBarbarian
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Updated Oct 14, 2026
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API and Library
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JSON Model Extensions

JMX adds support for FREX Rendering API features to Minecraft JSON model loading. It can also be configured to load all JSON models as FREX meshes, which may offer a modest reduction in memory usage due to more efficient data structures.

Discord

Current Features

  • Backwards compatibility with Vanilla model JSONs
  • Alternate texture definitions for each face
  • Up to two sprite layers per face
  • Material specification to control lighting, render layer
  • Material inheritance, similar to other JSON model inheritance
  • Support for separate definition for FREX renderers (useful for shaders)
  • FREX definitions can reference shaders loaded via FREX JSON material loader

See the JMX Wiki for more information.

jmx-fabric-20.0.281.jar
MC Fabric, 1.20, Quilt
Release 2023-10-14 Get
jmx-fabric-20.0.279.jar
MC Fabric, 1.20, Quilt
Release 2023-06-11 Get
jmx-fabric-19.2.264.jar
MC Fabric, 1.19.2, Quilt
Release 2023-05-11 Get
jmx-fabric-18.2.252.jar
MC Fabric, 1.18.2, Quilt
Release 2023-05-03 Get
jmx-fabric-19.3.269.jar
MC 1.19.3, Fabric, Quilt
Release 2023-05-03 Get
jmx-fabric-19.4.274.jar
MC 1.19.4, Fabric, Quilt
Release 2023-05-03 Get
jmx-fabric-mc119-3.0.272.jar
MC 1.19.4, Fabric, Quilt
Release 2023-04-30 Get
jmx-fabric-mc119-2.0.267.jar
MC 1.19.3, Fabric, Quilt
Release 2023-04-29 Get
jmx-fabric-mc119-1.22.262.jar
MC Fabric, 1.19.2
Release 2022-12-03 Get
jmx-fabric-mc119-1.22.261.jar
MC Fabric, 1.19.2
Release 2022-10-16 Get
jmx-fabric-mc119-1.22.259.jar
MC Fabric, 1.19.2
Release 2022-10-05 Get
jmx-fabric-mc119-1.22.258.jar
MC Fabric, 1.19.2
Release 2022-09-19 Get
jmx-fabric-mc118-1.22.251.jar
MC Fabric, 1.18.2
Release 2022-07-11 Get
jmx-fabric-mc119-1.22.253.jar
MC Fabric, 1.19
Release 2022-07-08 Get
jmx-fabric-mc119-1.22.252.jar
MC Fabric, 1.19
Release 2022-06-25 Get
jmx-fabric-mc119-1.22.251.jar
MC Fabric, 1.19
Release 2022-06-08 Get
jmx-fabric-mc118-1.22.246.jar
MC Fabric, 1.18.2
Release 2022-03-05 Get
jmx-fabric-mc118-1.22.242.jar
MC 1.18.1, Fabric
Release 2021-12-24 Get
jmx-fabric-mc118-1.22.243.jar
MC 1.18.1, Fabric
Release 2021-12-24 Get
jmx-fabric-mc118-1.22.239.jar
MC 1.18.1, Fabric
Release 2021-12-11 Get
jmx-fabric-mc117-1.22.231.jar
MC 1.17.1, Fabric
Release 2021-12-11 Get
jmx-fabric-mc118-1.22.236.jar
MC Fabric, 1.18
Release 2021-12-06 Get
jmx-fabric-mc117-1.22.228.jar
MC 1.17.1, Fabric
Release 2021-12-05 Get
jmx-mc117-1.22.203.jar
MC 1.17, Fabric
Release 2021-07-24 Get
jmx-mc117-1.22.201.jar
MC 1.17, Fabric
Release 2021-06-30 Get
jmx-mc117-1.22.200.jar
MC 1.17, Fabric
Beta 2021-06-03 Get
jmx-mc117-1.22.199.jar
MC 1.17, Fabric
Beta 2021-05-31 Get
jmx-mc117-1.22.196.jar
MC 1.17, Fabric
Beta 2021-05-29 Get
jmx-mc116-1.22.185.jar
MC Fabric, 1.16.4
Release 2021-05-22 Get
jmx-mc117-1.22.188.jar
MC 1.17, Fabric, 1.17-Snapshot
Beta 2021-03-21 Get
jmx-mc117-1.22.186.jar
MC 1.17, Fabric, 1.17-Snapshot
Beta 2021-03-18 Get
jmx-mc117-1.22.185.jar
MC 1.17, Fabric
Release 2021-03-14 Get
jmx-mc116-1.21.182.jar
MC Fabric, 1.16.4
Release 2021-01-04 Get
jmx-mc116-1.19.172.jar
MC Fabric, 1.16.4
Release 2021-01-01 Get
jmx-mc116-1.20.179.jar
MC Fabric, 1.16.4
Release 2021-01-01 Get
jmx-mc116-1.19.169.jar
MC Fabric, 1.16.4
Release 2020-12-31 Get
jmx-mc116-1.19.171.jar
MC Fabric, 1.16.4
Release 2020-12-31 Get
jmx-mc116-1.19.168.jar
MC Fabric, 1.16.4
Release 2020-12-18 Get
jmx-mc116-1.19.167.jar
MC Fabric, 1.16.4
Release 2020-12-16 Get
jmx-mc116-1.15.127.jar
MC 1.16.3, Fabric
Release 2020-10-09 Get
jmx-mc116-1.12.118.jar
MC 1.16.3, Fabric, 1.16.2
Release 2020-08-14 Get
jmx-mc116-1.7.95.jar
MC 1.16.1, Fabric
Release 2020-07-11 Get
jmx-mc116-1.7.93.jar
MC 1.16.1, Fabric
Release 2020-06-26 Get
jmx-mc116-1.6.89.jar
MC 1.16-Snapshot, 1.16, Fabric
Release 2020-06-01 Get
jmx-mc116-1.5.86.jar
MC 1.16-Snapshot, Fabric
Beta 2020-05-16 Get
jmx-mc116-1.4.82.jar
MC 1.16-Snapshot, Fabric
Beta 2020-03-13 Get
jmx-mc116-1.4.81.jar
MC 1.16-Snapshot, Fabric
Beta 2020-02-06 Get
jmx-mc115-1.4.79.jar
MC 1.15-Snapshot, Fabric
Beta 2020-01-20 Get
jmx-mc115-1.3.78.jar
MC Fabric, 1.15.1
Release 2020-01-09 Get
jmx-mc115-1.2.76.jar
MC Fabric, 1.15.1
Release 2020-01-08 Get
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