Fluid Converter
by f0x06
Fluid Converter lets a single in-world block convert one fluid into another, configured by pairing one fluid with the result it should become.
What it does
A converter block drains its input tank and fills its output tank at a configurable rate. Each face can be set independently, so one converter can sit at a junction with an input from one side, a refinery output on another and the rest of the network left alone. Energy is accepted from any face, regardless of role, so cables do not fight pipes on the sides. The output tank holds only the fluid that was selected, and a machine that pours a different fluid into it will have that fluid drained away.
Pairs are taught in-game through a chat console, or shipped as recipe data in a datapack using the fluidconverter:converting type. Pairs are bidirectional by default, so teaching a converter from A to B also accepts B back to A unless the pair is set to reverse. Datapack edits reload live, and the list, forget and clear commands are available to operators. Non-operators do not see the command at all. The mod is published for NeoForge only, for Minecraft 1.21.1, and it is open source under the MIT License. Client and server both need it.
Key features
In-world fluid conversion
A converter block turns one fluid into another as fluid passes through it, with no separate machine needed.
Per-face configuration
Each face of a converter has its own role, input, output or energy, so it fits into existing pipe layouts.
Teach pairs in-game
Operators can add, list, forget and clear conversion pairs from the chat console, and an autocompleting fluid registry helps select fluids.
Datapack recipes
Conversions can be written as recipe JSON files in a datapack and reload while the world runs, so modpack makers can version them with the rest of the pack.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Modpack makers and server owners who want conversions defined as data or taught in-game, and players who build fluid networks that need a fluid turned into another before it reaches a machine.
Questions
Does Fluid Converter need to be installed on the server?
Can a converter be set to only accept one direction?
Which loader does Fluid Converter support?
In the catalog
Fluid Converter is one of 8,499 Technology mods on ModsFinder, and one of 3,557 Technology mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
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What the author says
You know how it goes. You install Mekanism, Create, TFMG and Immersive Engineering, then look at JEI and find four kinds of "molten steel" that refuse to talk to each other. Or six different crude oils. Or three honey fluids. This mod fixes that, one in-world block at a time. Place the converter, pipe a fluid into…
Official listing
- Modrinth page
- modrinth.com/mod/fluidconverter
- Owner
- f0x06
- Published
- 2026-05-15
- Updated on Modrinth
- 2026-05-16
- Facts verified
- 2026-10-15