GeckoLib
by Gecko
An animation library for Minecraft mods that enables complex entity animations created in Blockbench.
LibraryDownload GeckoLib
GeckoLib 4.9.2 sits on our own server, the build Gecko released on 2026-07-01, 0.6 MB. Gecko stays the author of GeckoLib, the file is only hosted here. It brings particle and sound sync. 0.6 MB is the whole of GeckoLib, one file.
Download geckolib-neoforge-1.21.1-4.9.2.jarFor neoforge on Minecraft 1.21.1. SHA1 14c64013cadee7d28f3685f94350f9a4d2ec6d86 is the checksum of this GeckoLib file. 4.9.2 is the GeckoLib build number on this file. 0.6 MB after download, no unpacking for GeckoLib.
Overview
An animation library for Minecraft mods that enables complex entity animations created in Blockbench. GeckoLib lists entity and item animations among its features. 3,207 watchers follow GeckoLib today. It rates advanced to pick up. It brings keyframe animation support.
GeckoLib is an animation engine many creature and machine mods use for smooth, keyframed models, so you usually install it because another mod requires it. It counts 5 features across 29 versions. It reaches 26.2. It covers 29 game versions. It needs no companion mod.
GeckoLib 4.9.2 is downloadable here, 0.6 MB. It includes resource pack animations. It ships under MIT. 3,207 people watch GeckoLib for updates. 18 other Library mods sit beside GeckoLib.
Gecko tags GeckoLib as animation, entities and blockbench. It spans 1.12.2 to 26.2. It lists entity and item animations too. 33 builds carry the GeckoLib name. The GeckoLib code is open to read.
GeckoLib keeps pace with the game as Gecko publishes it. It counts 5 features across 29 versions. It includes entity and item animations. It lists particle and sound sync among its features. 1.12.2 is the oldest game version this GeckoLib list reaches back to.
Mod Loaders
GeckoLib ships a separate build for each of Forge, Fabric, NeoForge and Quilt. It needs one loader, GeckoLib ignores the other. It lists entity and item animations among its features. 3,207 watchers follow GeckoLib today.
Minecraft Versions
29 game versions carry GeckoLib, 1.12.2 at the oldest and 26.2 at the newest. A GeckoLib jar built for another version will not load GeckoLib. The GeckoLib file here is version 4.9.2, for Minecraft 1.21.1. It is current with 26.2, the newest the game has.
26.1, 26.1.2 and 26.2 are the newest game versions with a GeckoLib build. Your launcher version and the GeckoLib jar version have to match. It has nothing to catch up on. It counts 5 features across 29 versions.
Mods here that need GeckoLib
3 mods here will not load without GeckoLib. GeckoLib has to match the same game version as the mod that asks for it. Ars Nouveau, Occultism and Mana and Artifice name GeckoLib as a file they need. Installing GeckoLib alone changes nothing; it is there for the mods above it.
Release history
Gecko has published 542 GeckoLib builds, the first on 2022-08-08 and the newest on 2026-07-01. The date says when GeckoLib last moved, not how long it will keep working. It spans 1.12.2 to 26.2. Each GeckoLib build targets its own game version and loader.
| Build | Published | For | Downloads |
|---|---|---|---|
| 4.9.2 | 2026-07-01 | NeoForge · 1.21.1 | 864K · 0.6 MB |
| 4.9.2 | 2026-07-01 | Forge · 1.21.1 | 45K · 1.2 MB |
| 4.9.2 | 2026-07-01 | Fabric · 1.21.1 | 1M · 0.6 MB |
| 5.5.3 | 2026-06-27 | NeoForge · 26.2 | 25K · 0.6 MB |
| 5.5.3 | 2026-06-27 | Forge · 26.2 | 15K · 0.6 MB |
| 5.5.3 | 2026-06-27 | Fabric · 26.2 | 240K · 0.7 MB |
| 5.5.2 | 2026-06-27 | NeoForge · 26.1.2 | 11K · 0.6 MB |
| 5.5.2 | 2026-06-27 | Forge · 26.1.2 | 7K · 0.6 MB |
2026: 49 builds · 2025: 108 builds · 2024: 118 builds · 2023: 60 builds · 2022: 207 builds
Key Features
GeckoLib brings a focused set of features to the table. Highlights include keyframe animation support, plus blockbench integration, with the full list below.
- Keyframe animation support
- Blockbench integration
- Entity and item animations
- Particle and sound sync
- Resource pack animations
Tags
How to install GeckoLib
GeckoLib takes one of Forge, Fabric, NeoForge and Quilt. It spans 1.12.2 to 26.2. It belongs on both sides. Nothing else goes in with GeckoLib.
- 1Install Forge for the Minecraft version you want GeckoLib on. It brings blockbench integration. It lists 29 of them, 1.12.2 to 26.2. Forge, Fabric, NeoForge and Quilt each work for GeckoLib, one at a time.
- 2Nothing has to go in before GeckoLib. Gecko lists no library under GeckoLib. No library is listed under GeckoLib. The GeckoLib page names its own requirements.
- 3Drop geckolib-neoforge-1.21.1-4.9.2.jar into the mods folder. 0.6 MB is the whole GeckoLib file. The server needs that same GeckoLib file. The folder may hold other mods beside GeckoLib.
- 4Start the game and look for GeckoLib in the mods list. The log names the file when GeckoLib refuses. 3,207 watchers follow GeckoLib today. No GeckoLib entry means the loader or the version is off.
GeckoLib runs on 29 game versions, 1.12.2 to 26.2. It lists 29 game versions. 1.12.2 is as far back as GeckoLib goes. Each GeckoLib jar is built per version.
See our full mod install guideCompatibility & alternatives
Forge, Fabric, NeoForge and Quilt run GeckoLib today. It includes blockbench integration. It keeps pace with 26.2. 29 versions carry GeckoLib. It belongs on both sides.
GeckoLib asks nothing of the rest of your pack. It counts 5 features across 29 versions. It competes in Library. Architectury API and Fabric API share the shelf with GeckoLib. (no direct alternative, it is a dependency library) cover ground GeckoLib also covers.
Play modded Minecraft
Host a modded server with Astroworld Hosting or join our community.
Try Astroworld Hosting
