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ObsidianUIMinecraft mod for 1.21.5

SpruceUI unofficial architectury port. A Minecraft library mod which adds a new abstraction to create GUI interfaces.

client onlynewest supported 1.21.5UtilityLibrary
Latest version
0.2.12+mc1.21.6-neoforge
Minecraft
1.16.4 to 1.21.5
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
MIT
Downloads
2.4M
Updated
15 mo ago
Available on
Modrinth

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.5NeoForge, Forge, Fabric21+declared25 Mar 2025
1.21.4Fabric, NeoForge, Forge21+declared3 Dec 2024
1.21.3Forge, NeoForge, Fabric21+declared23 Oct 2024
1.21.2Forge, NeoForge, Fabric21+declared22 Oct 2024
1.21.1Forge, NeoForge, Fabric21+declared8 Aug 2024
1.21Fabric, NeoForge, Forge21+declared13 Jun 2024
1.20.6NeoForge, Forge, Fabric21+declared29 Apr 2024
1.20.5Fabric, NeoForge, Forge21+declared23 Apr 2024
1.20.4Forge, NeoForge, Fabric17+declared7 Dec 2023
1.20.3Forge, NeoForge, Fabric17+declared4 Dec 2023
1.20.2Forge, NeoForge, Fabric17+declared20 Sept 2023
1.20.1Forge, NeoForge, Fabric17+declared12 Jun 2023
1.20Forge, Fabric, NeoForge17+declared2 Jun 2023
1.19.4NeoForge, Forge, Fabric17+declared14 Mar 2023
1.19.3Fabric, NeoForge, Forge17+declared7 Dec 2022
1.19.2Forge, NeoForge, Fabric17+declared5 Aug 2022
1.19.1Forge, NeoForge, Fabric17+declared27 Jul 2022
1.19Forge, NeoForge, Fabric17+declared7 Jun 2022
1.18.2Forge, NeoForge, Fabric17+declared28 Feb 2022
1.18.1Forge, NeoForge, Fabric17+declared10 Dec 2021
1.18Forge, NeoForge, Fabric17+declared30 Nov 2021
1.17.1Forge, NeoForge, Fabric16+declared6 Jul 2021
1.17Forge, NeoForge, Fabric16+declared8 Jun 2021
1.16.5Forge, NeoForge, Fabric8+declared14 Jan 2021
1.16.4Forge, NeoForge, Fabric8+declared29 Oct 2020

Download

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

All 56 releases
0.2.12+mc1.21.6-neoforgealpha23 Jun 2025

ObsidianUI-neoforge-0.2.12+mc1.21.6.jar · 0.2 MB · for 1.21.5

Download latest
b7d0d6dfd591…
Older versions24
  • 0.2.12+mc1.21.6-fabric23 Jun 20251.21.50.2 MB9.5k downloads69385f99cdb5…Get
  • 0.2.12+mc1.21.5-neoforge28 May 20251.21.50.2 MB124 downloads0f74b5ec3f60…Get
  • 0.2.12+mc1.21.5-fabric28 May 20251.21.50.2 MB4.9k downloads783dff3fc5f6…Get
  • 0.2.11+mc1.21.5-neoforge28 Mar 20251.21.50.2 MB300 downloads2fe60f16bae9…Get
  • 0.2.11+mc1.21.5-fabric28 Mar 20251.21.50.2 MB35.8k downloads0f4996645954…Get
  • 0.2.11+mc1.21.4-neoforge28 Mar 20251.21.40.2 MB266 downloadseaea3150f5d4…Get
  • 0.2.11+mc1.21.4-fabric28 Mar 20251.21.40.2 MB41.4k downloadsb38c859109f6…Get
  • 0.2.10+mc1.21.3-neoforge23 Nov 20241.21.2, 1.21.30.2 MB634 downloads85753a040fae…Get
  • 0.2.10+mc1.21.3-fabric23 Nov 20241.21.2, 1.21.30.2 MB112.0k downloads41775da7e4d1…Get
  • 0.2.9+mc1.21.1-neoforge23 Nov 20241.21, 1.21.10.2 MB117.2k downloadsd898a805f6ae…Get
  • 0.2.9+mc1.21.1-fabric23 Nov 20241.21, 1.21.10.2 MB182.3k downloads4e75feb3e363…Get
  • 0.2.7+mc1.21-neoforge26 Jun 20241.210.2 MB12.9k downloadsf1a50a4b00bf…Get
  • 0.2.7+mc1.21-fabric26 Jun 20241.210.2 MB479.8k downloads507640ee0031…Get
  • 0.2.6+mc1.20.6-neoforge21 Jun 20241.20.5, 1.20.60.2 MB739 downloads3474c2045d70…Get
  • 0.2.6+mc1.20.6-fabric21 Jun 20241.20.5, 1.20.60.2 MB19.3k downloads29018078cdaa…Get
  • 0.2.6+mc1.21-neoforge18 Jun 20241.210.2 MB411 downloadsbd2b18cc9691…Get
  • 0.2.6+mc1.21-fabric18 Jun 20241.210.2 MB11.3k downloads26e124e2d136…Get
  • 0.2.5+mc1.20.6-neoforge18 May 20241.20.5, 1.20.60.2 MB1.8k downloads4585e2d79afc…Get
  • 0.2.5+mc1.20.6-fabric18 May 20241.20.5, 1.20.60.2 MB22.1k downloadsefb51ec69a9b…Get
  • 0.2.4+mc1.20.6-neoforge18 May 20241.20.5, 1.20.60.2 MB179 downloads9b166e546053…Get
  • 0.2.4+mc1.20.6-fabric18 May 20241.20.5, 1.20.60.2 MB251 downloads6ab1e4ae4255…Get
  • 0.2.5+mc1.16.5-forge21 Apr 20241.16.4, 1.16.50.3 MB65.9k downloadsebcbe8d85888…Get
  • 0.2.5+mc1.16.5-fabric21 Apr 20241.16.4, 1.16.50.3 MB17.6k downloads245f949964c3…Get
  • 0.2.3+mc1.19.2-forge21 Apr 20241.19, 1.19.1, 1.19.20.2 MB395.9k downloads9af8f3e6088f…Get

Frequently asked

Does ObsidianUI work on Minecraft 1.21.5?

Yes. 1.21.5 is the newest Minecraft version ObsidianUI 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 ObsidianUI support?

Everything the author has declared, from 1.16.4 up to 1.21.5. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install ObsidianUI 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 ObsidianUI support?

NeoForge, Forge, 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 ObsidianUI?

On the newest Minecraft version it supports, Java 21 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 ObsidianUI 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 ObsidianUI?

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 ObsidianUI 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.

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Last checked 2 mo 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? .