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ImproperUIMinecraft mod for 26.1.2

The ultimate solution to Minecraft Rendering being too hard to learn. Uses a custom scripting language highly inspired by Cascading Style Sheets to create fully working ingame GUIs!

client onlynewest supported 26.1.2TechnologyUtilityGame MechanicsLibrary
Latest version
26.1-0.0.7-BETA
Minecraft
1.20 to 26.1.2
Java
Java 25+
Loader
Fabric
Licence
MIT
Downloads
345.8k
Updated
1 mo ago
Available on
Modrinth

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version ImproperUI declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.1.2Fabric25+declared9 Apr 2026
26.1.1Fabric25+declared1 Apr 2026
26.1Fabric25+declared24 Mar 2026
1.21.11Fabric21+declared9 Dec 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21Fabric21+declared13 Jun 2024
1.20.6Fabric21+declared29 Apr 2024
1.20.4Fabric17+declared7 Dec 2023
1.20.3Fabric17+declared4 Dec 2023
1.20.2Fabric17+declared20 Sept 2023
1.20.1Fabric17+declared12 Jun 2023
1.20Fabric17+declared2 Jun 2023

Download

From ImproperUI’s own host. Nothing is re-hosted here.

26.1-0.0.7-BETAbeta9 Apr 2026

ImproperUI-26.1-0.0.7-BETA.jar · 0.2 MB · for 26.1, 26.1.1, 26.1.2

Download latest
837b07e96fe2…
Older versions15
  • 1.21.11-0.0.7-BETA1 Jan 20261.21.110.2 MB75.2k downloadsbc376e853a1f…Get
  • 1.21.11-0.0.6-BETA26 Dec 20251.21.110.2 MB2.0k downloads798887e0ce3e…Get
  • 1.21.6-0.0.6-BETA26 Jul 20251.21.6, 1.21.7, 1.21.80.2 MB8.3k downloads3cd3422f49bf…Get
  • 1.21-0.0.6-BETA17 Jun 20241.210.2 MB111.2k downloadse7a59c678f73…Get
  • 1-20.6-0.0.6-BETA17 Jun 20241.20.60.2 MB5.1k downloads32808961c991…Get
  • 1-20.2-0.0.6-BETA17 Jun 20241.20.2, 1.20.3, 1.20.40.2 MB14.4k downloadse377feb47baf…Get
  • 1-20-0.0.6-BETA17 Jun 20241.20, 1.20.10.2 MB57.1k downloadsf3394cc27692…Get
  • 1.21-0.0.5-BETA17 Jun 20241.210.2 MB653 downloads3e52d7fe0469…Get
  • 1.20-0.0.5-BETA18 May 20241.20, 1.20.10.2 MB1.6k downloadsdcd1a5d3dfd1…Get
  • 1.20.2-0.0.5-BETA18 May 20241.20.2, 1.20.3, 1.20.40.2 MB912 downloadsfe17c3270883…Get
  • 1.20.6-0.0.5-BETA18 May 20241.20.60.2 MB714 downloadse5e36e4fb583…Get
  • 0.0.4-BETA15 May 20241.20.60.2 MB136 downloadsbb242df6905f…Get
  • 0.0.3-BETA14 May 20241.20.60.2 MB135 downloadsde9e6eb55b96…Get
  • 0.0.2-BETA8 May 20241.20.40.2 MB266 downloadsf655c2d9d0ac…Get
  • 0.0.1-BETA7 May 20241.20.40.1 MB206 downloadsee205edb3f03…Get

Frequently asked

Does ImproperUI work on Minecraft 26.1.2?

Yes. 26.1.2 is the newest Minecraft version ImproperUI declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does ImproperUI support?

Everything the author has declared, from 1.20 up to 26.1.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install ImproperUI on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does ImproperUI support?

Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for ImproperUI?

On the newest Minecraft version it supports, Java 25 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is ImproperUI under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install ImproperUI?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download ImproperUI safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Last checked 23 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .