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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.

FabricClient-side onlyGNU Lesser General Public License v3.0 onlyOpen source1.20.1

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

  1. Auto-fill schematic containers

    Containers defined in the schematic are filled from the inventory, with missing materials reported as events.

  2. Split-frame highlight scanning

    Highlight scanning is spread across several frames, with a render cache and a configurable highlight budget to limit spikes.

  3. 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.

  4. Container tools

    Look-at tools support next and previous switching, hold-to-repeat and per-container cooldowns, and an optional tool HUD.

  5. 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.

1.20.1v0.10.4-1.20.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 2

MaLiLibA library mod for client-side mods. Contains most of the common/shared code of masa's client mods, and adds some inter-operation support between the dependent mods.
Required
LitematicaA client-side schematic mod with extra features for creative mode work
Required

How it compares

Full comparison

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.

ModLoadersGame versionsEnvironmentUpdated
Litematica Container Filler BackportFabric1.20.1Client-side only2026-07-29
SchematicPreviewFabric1.21 – 26.3Client-side only2026-09-23
LitematicaOitaBlockHighlighterFabric26.1.2Client-side only2026-06-26
Litematica Inventory HighlightFabric1.21.8 – 26.2Client-side only2026-08-05

Questions

Does Litematica Container Filler Backport need Litematica and MaLiLib?

Yes. Both Litematica and MaLiLib are required dependencies and must be installed alongside this mod on Fabric for 1.20.1.

Does the server need this mod?

No. Only the player's game needs it, and servers run without it.

Which version of the mod should be used on 1.20.1?

The latest Fabric file for 1.20.1 is v0.10.4-1.20.1, published on 2026-07-29. Builds are published only for 1.20.1.

More from Rczlin

All projects

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.
Rczlin, on the Modrinth page

Official listing

Owner
Rczlin
Published
2026-07-05
Updated on Modrinth
2026-07-29
Facts verified
2026-10-15