Polymorph
Java mod listed for Minecraft 1.16–1.21. File opened and checked on 21 Sep 2026; downloads from the MC Java Mods app on Android.
I don't know my version or loader
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.
Downloads
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.
Smithing
Exactly like the crafting screen, a button will appear above the output slot when a valid input matches more than one output. Upon selection, the output will change to match.
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. Currently, the command will scan crafting,
smelting, blasting, smoking, and smithing recipes.
Support
Please report all bugs, issues, and feature requests to the issue tracker.
For non-technical support and questions, join the developer's Discord.
License
All source code and assets are licensed under LGPL 3.0 or later.
Donations
Donations to the developer can be sent through Ko-fi.
Affiliates
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.1, 1.19.2, 1.18.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as polymorph-forge-1.16.3-0.16.jar — drop this file into the mods folder
- Download size: 82 KB
- Download link checked 23 Oct 2026 — working
These come from our own check of the pack file, not from the source page.
