SaveRestorer
by li27744
SaveRestorer is a NeoForge tool that cleans damaged Minecraft 1.21.1 worlds left behind after large mods are removed.
What it does
Removing a large mod often leaves a save full of invalid blocks, block entities, items, player inventory entries, ender chest contents, equipment, potion effects and advancements that reference the missing content. Dimension references and forced chunks can also remain, and advancement data of this kind can stop a world from loading. SaveRestorer scans the save and strips these residues directly from the save files, so the world can load again.
The whole process runs from a single configuration screen that shows real-time progress. The tool works on raw NBT, JSON and region files and never loads the world on a server, which is why the save must be cleaned before the server starts. Removed blocks can be swapped for stone or air to avoid chunk errors. File writes go through temporary copies, and an optional ZIP backup can be made before any repair. The mod is open source under the MIT License and is published for NeoForge 1.21.1 only.
Players and server owners who removed mods from a 1.21.1 world can use it on a single-player save or a server world. Config-file filters let owners exclude mod IDs or entire namespaces, so content that should stay is not touched.
Key features
Broad cleanup
Invalid blocks, block entities, items, inventories, ender chests, equipment, potion effects and advancements are all checked for leftovers from removed mods.
Safe atomic writes
Each change is written through a temporary copy, which keeps the original files intact if a write fails.
Configurable filters
Mod IDs and full namespaces can be whitelisted or blacklisted in a config file before a repair runs.
Smart block replacement
Removed blocks are replaced with stone or air, which prevents chunk errors after the repair.
Non-intrusive interface
A single screen shows the current phase, the file being processed and overall progress on two status lines.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Datapack Load Error Fix is a Forge and NeoForge mod for 1.18.2 – 1.21.11 that runs client-side only; it is open source under the MIT License. Recipe Fixer is open source under the MIT License, works on Fabric, NeoForge and Quilt for 1.21.1, and can run on a client or a server. No More Pop-ups is client-side only and open source under the MIT License across 1.20 – 26.3, but it does not clean save files.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| SaveRestorer | NeoForge | 1.21.1 | Client or server, optional | 2026-06-02 |
| Datapack Load Error Fix | Forge and NeoForge | 1.18.2 – 1.21.11 | Client-side only | 2026-02-15 |
| Recipe Fixer | Fabric, NeoForge and Quilt | 1.21.1 | Client or server, optional | 2026-09-12 |
| No More Pop-ups | Fabric, Forge, NeoForge and Quilt | 1.20 – 26.3 | Client-side only | 2026-09-30 |
Questions
Which loader does SaveRestorer need?
Does SaveRestorer have to be installed on a server?
Is the original world kept when a repair runs?
In the catalog
SaveRestorer is one of 3,545 Optimization mods on ModsFinder, and one of 1,250 Optimization mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from li27744
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What the author says
SaveRestorer – Deep Save Cleaner Mod ID: saverestorer For: Minecraft 1.21.1 NeoForge License: MIT 📖 Overview SaveRestorer is a manual, deep‑cleaning tool for corrupted Minecraft worlds. After removing large mods, your save often contains thousands of invalid blocks, entities, items, advancement references, and…
Official listing
- Modrinth page
- modrinth.com/mod/saverestorer
- Owner
- li27744
- Published
- 2026-05-10
- Updated on Modrinth
- 2026-06-02
- Facts verified
- 2026-10-15