potion fixer
by Tethracubor
Potion Fix changes how potions behave in the game, and it is a Fabric client-side only optimization mod for Minecraft 1.21.4 – 1.21.11.
What it does
Potion Fix is a Fabric mod in the Optimization category that works on the client alone. Only the player's own game needs it, and a server running vanilla Minecraft can be joined without installing anything. It is distributed as a single Fabric build for 1.21.11 at version 1.0.4, released on 2026-08-04, with an earlier file for 1.21.4 also available.
Potion Fix is published under All rights reserved and is not open source, so its code is not available for redistribution or modification. Its first release came out on 2026-07-29, and the page was last updated on 2026-08-04. No snapshot builds are listed.
Key features
Potion handling
The mod modifies how potions are processed on the client, which is the mod's stated focus.
Optimization focus
The mod is listed under Optimization and targets the potion code path rather than adding new potions or items.
Fix-specific behavior
Potion Fix is described by its author as a targeted fix, and its changes apply only to potion processing.
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
Potions++ is a Fabric mod for 1.21.11 that runs on both the client and the server, and it is not open source. Potion Fix runs on the client alone, so a server does not need it. AUTOPOT is a Fabric client-side mod for 1.21.11 under All rights reserved, and it does not cover potion handling on the client the way Potion Fix does.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| potion fixer | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-08-04 |
| Potions++ | Fabric | 1.21.11 | Client and server | 2026-06-14 |
| AUTOPOT | Fabric | 1.21.11 | Client-side only | 2026-03-26 |
Questions
Does Potion Fix need to be installed on the server?
Which Minecraft versions does Potion Fix support?
Is the Potion Fix source code available?
In the catalog
potion fixer is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
Potion Fix - небольшой клиентский мод для серверов, на которых используются стакающиеся зелья и бафы. Сервер создаёт и обрабатывает стакающиеся зелья, а Potion Fix помогает клиенту правильно их воспринимать и отображать. Мод предназначен в первую очередь для серверов, где уже используются стакающиеся бафы или зелья и…
Official listing
- Modrinth page
- modrinth.com/mod/potion-fixer
- Owner
- Tethracubor
- Published
- 2026-07-29
- Updated on Modrinth
- 2026-08-04
- Facts verified
- 2026-10-15