SlotsPlus
SlotsPlus, a Forge client mod for 1.21, moves a replacement tool into the active slot the moment the held tool breaks.
What it does
When the tool in hand breaks, SlotsPlus looks through the inventory for another tool of the same type and puts it into the active slot straight away, so mining or chopping can carry on without a pause. The player does not have to change the slot by hand. Only the client needs the mod, so servers run without it and players join without installing anything. The mod is published for Forge alone, with a single file for 1.21 dated 2025-07-01, and is released under the MIT License, though it is not open source.
Key features
Automatic tool replacement
A broken tool is swapped for another of the same type found in the inventory, with no key press needed.
Active slot kept in use
The new tool takes the active slot right after the previous one breaks, so the player keeps working.
Uninterrupted gameplay
The switch happens instantly, which helps long mining or building sessions run without manual slot changes.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Broken Tool runs on Forge and NeoForge for 1.19.2 – 1.21.11, is client and server, and is licensed under WTFPL, not open source. SmoothBreak is client-side only, open source under the MIT License, and built for 1.20.1 – 1.21.1 on Forge alone.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| SlotsPlus | Forge | 1.21 | Client-side only | 2025-07-01 |
| Broken Tool | Forge and NeoForge | 1.19.2 – 1.21.11 | Client and server | 2026-02-01 |
| SmoothBreak | Forge | 1.20.1 – 1.21.1 | Client-side only | 2026-01-02 |
Questions
Does SlotsPlus need to be installed on the server?
In the catalog
SlotsPlus is one of 17,631 Equipment mods on ModsFinder, and one of 9,216 Equipment mods for Forge. 15,770 mods support Minecraft 1.21.
Similar mods
What the author says
This mod automatically replaces a broken tool with another of the same type from the inventory, without changing the active slot. It works seamlessly to ensure uninterrupted gameplay by instantly switching to a new tool immediately after the current one breaks. Main Features Automatic tool replacement upon breakage…
Official listing
- Modrinth page
- modrinth.com/mod/slotsplus
- Owner
- carmelitos6990
- Published
- 2025-07-01
- Updated on Modrinth
- 2025-07-01
- Facts verified
- 2026-10-15