Litematica Container Filler Backport
by Rczlin
Litematica Container Filler Backport brings automatic filling of schematic containers to Minecraft 1.20.1 on Fabric, using Litematica's schematic data to move items into the right chests.
What it does
Litematica Container Filler Backport auto-fills the containers listed in a Litematica schematic, routing items from the player's inventory through the item transport path. Before filling, the mod checks the real block state of each target so that mismatched blocks are not filled. Containers outside the current schematic range can also be worked on, and an empty-schematic option clears them. Litematica Container Filler Backport brings the original mod to 1.20.1 on Fabric, with changes to rendering and scanning aimed at steadier frame rates and fewer stalls.
The mod is client-side only, so servers do not need it, and it requires Litematica and MaLiLib to run. Builds are published for Fabric only, for 1.20.1, with v0.10.4-1.20.1 as the latest file released on 2026-07-29. The code is open source under the GNU Lesser General Public License v3.0 only, and public links exist for the source code and the issue tracker.
Key features
Auto-fill schematic containers
Containers defined in the schematic are filled from the inventory, with missing materials reported as events.
Split-frame highlight scanning
Highlight scanning is spread across several frames, with a render cache and a configurable highlight budget to limit spikes.
Container status rendering
Container state appears in the 3D world with translucent bodies, top plates and animated task markers, which can be recolored and limited by render radius.
Container tools
Look-at tools support next and previous switching, hold-to-repeat and per-container cooldowns, and an optional tool HUD.
Anti-cheat caution
Automated container operations can be flagged by server plugins, so a longer action delay and a slow click packet mode are available.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
How it compares
SchematicPreview is Fabric and client-side only for 1.21 – 26.3 under All rights reserved, and it is not open source. LitematicaOitaBlockHighlighter is Fabric and client-side only, licensed under the GNU Lesser General Public License v3.0 only, built for 26.1.2 and not open source. Litematica Inventory Highlight is Fabric and client-side only under the MIT License, for 1.21.8 – 26.2.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Litematica Container Filler Backport | Fabric | 1.20.1 | Client-side only | 2026-07-29 |
| SchematicPreview | Fabric | 1.21 – 26.3 | Client-side only | 2026-09-23 |
| LitematicaOitaBlockHighlighter | Fabric | 26.1.2 | Client-side only | 2026-06-26 |
| Litematica Inventory Highlight | Fabric | 1.21.8 – 26.2 | Client-side only | 2026-08-05 |
Questions
Does Litematica Container Filler Backport need Litematica and MaLiLib?
Does the server need this mod?
Which version of the mod should be used on 1.20.1?
More from Rczlin
What the author says
A Minecraft 1.20.1 Fabric port of Litematica Container Filler with performance optimizations and stability improvements. The renderer uses translucent bodies, top plates, and animated 3D task markers. Containers being filled, queued containers, and missing-material events each have separate animated markers.
Official listing
- Owner
- Rczlin
- Published
- 2026-07-05
- Updated on Modrinth
- 2026-07-29
- Facts verified
- 2026-10-15
