
polymorph but it's for fabric only but also for 1.21.10
No more recipe conflicts! Adds an option to choose the crafting result if more than one is available. (Unofficial fork, updated for Minecraft 1.21.10)
Screenshots

About this Mod
This is an unofficial fork of Polymorph by IllusiveSoulworks, updated for Minecraft 1.21.10.
Polymorph is a mod that solves recipe conflicts by letting players choose between all potential outputs shared by the same ingredients.
With a sufficiently large amount of mods, recipe conflicts are a common occurrence and the responsibility for resolving these usually falls on the user or modpack developer, using datapacks or other tools to ensure that each recipe is unique.
Polymorph offers an alternative solution, allowing all possible crafting and smelting recipes to co-exist regardless of conflicts.
Fork Information
This fork updates Polymorph for Minecraft 1.21.10 (Fabric only).
Changes from original:
- Updated to Minecraft 1.21.10 API
- Fixed smithing recipe handling for new recipe structure
- Removed NeoForge/Forge support (Fabric only)
- Various API compatibility fixes
Original Project
- Author: IllusiveSoulworks
- Repository: github.com/illusivesoulworks/polymorph
- CurseForge: Polymorph
If you appreciate this mod, please support the original developer via Ko-fi.
Features
Crafting

When a group of ingredients matches more than one recipe, a button will appear above the output slot. Pushing this button will show a list of all possible results and selecting one will change the crafting output to match. Polymorph will also remember the last selection as long as the ingredients don't change, so repeated crafting actions are possible on the same selection.
Smelting

When a valid input matches more than one output, a button will appear above the output slot. Pushing this button will show a list of all possible results with the currently selected result highlighted in green. Selecting one of the listed results will change the smelting output to match. This selection will be saved to the block itself and persist across world loading and unloading.
Commands
To assist identifying potential conflicts, there's a command /polymorph conflicts that will try to identify recipes that conflict with each other and outputs a list of them to your logs folder.
Available Versions
How to Install polymorph but it's for fabric only but also for 1.21.10 on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).
Install Mod
Open the mod browser in the dashboard and search for "polymorph but it's for fabric only but also for 1.21.10". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.10
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
polymorph but it's for fabric only but also for 1.21.10 server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.
Is polymorph but it's for fabric only but also for 1.21.10 compatible with fabric?
polymorph but it's for fabric only but also for 1.21.10 officially supports fabric for Minecraft 1.21.10. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with polymorph but it's for fabric only but also for 1.21.10 – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if polymorph but it's for fabric only but also for 1.21.10 consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install polymorph but it's for fabric only but also for 1.21.10 with just one click on your server.