ItemCheck
by Z2SIX
ItemCheck is a NeoForge storage tool that tracks which items a player has already collected, which helps when building a large warehouse.
What it does
Players open the ItemCheck interface with the O key. The screen lists items and lets the player switch between tabs, filter the list to the items they still want to see, and reorder entries by clicking and dragging them. Right-clicking an item marks it as collected, so the list stays current while a warehouse is being filled.
The mod is built for players who need to keep track of items across a large storage project. Its author notes that it has only been tested in single-player, where data is stored with the world, and that dedicated server support is planned but not yet available. Servers that run it need every player to install it too.
ItemCheck is published for NeoForge 1.21.1 only, with the latest file 1.1.2.0 released on 2026-05-14. It is not open source and is distributed under a custom license by Z2SIX. The mod is also listed under the Management and Utility categories.
Key features
Collection tracking
Right-clicking an item marks it as collected, so the record of gathered items updates as the player works.
Keyboard-opened interface
Pressing O opens the ItemCheck screen, where the list of items can be viewed at any time.
Tabs and item filters
Tabs in the screen can be edited and act as filters that show only the items the player wants to see.
Reordering by drag
Items in the list can be clicked and dragged into a new order.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Building a mega warehouse
A player assembling a large storage system can use the list to check which items are still missing.
Who it’s for: Players who build large storage systems and want a record of items they have already collected. The mod suits single-player worlds, since dedicated server support has not been tested yet.
How it compares
Storage Organizer is open source under the MIT License, client-side only and published for Forge and NeoForge across 1.20.1 – 26.1.2. Tab Atelier is also client-side only and covers 1.21.1 – 26.2 under the MIT License. Step Get 2 is a NeoForge mod for 1.21.8 only, with a client and server environment and an All rights reserved license. ItemCheck, by contrast, is client and server, targets 1.21.1 only and is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ItemCheck | NeoForge | 1.21.1 | Client and server | 2026-05-14 |
| Storage Organizer | Forge and NeoForge | 1.20.1 – 26.1.2 | Client-side only | 2026-08-30 |
| Tab Atelier | NeoForge | 1.21.1 – 26.2 | Client-side only | 2026-07-14 |
| Step Get 2 | NeoForge | 1.21.8 | Client and server | 2026-04-14 |
Questions
Does ItemCheck need to be installed on the server?
Does ItemCheck work on dedicated servers?
Which loader does ItemCheck support?
In the catalog
ItemCheck is one of 4,058 Storage mods on ModsFinder, and one of 1,794 Storage mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from Z2SIX
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What the author says
Building a mega warehouse and need to keep track of which items you have already collected? Then this mod is for you. How to use: - Press O to open the GUI - Add or edit (RMB) tabs, which act as an item filter, showing you the items you want to see. - Click and drag items to reorder them - Right click an item to mark…
Official listing
- Modrinth page
- modrinth.com/mod/itemchecker
- Owner
- Z2SIX
- Published
- 2026-05-01
- Updated on Modrinth
- 2026-05-14
- Facts verified
- 2026-10-15