Max Health Fix
by Darkhax
With Max Health Fix installed, a player whose maximum health was raised above 20 has it reset to 20 after saving, exiting and rejoining the world.
What it does
The mod corrects a bug in Minecraft where a maximum health value raised above 20, for example by a helmet with an attribute modifier, is not preserved across a save and reload. Once the bug is fixed, the raised maximum stays in place when the player rejoins. The fix applies to singleplayer worlds when the mod is on the client, and to every player on a server when the mod runs there, including players whose clients do not have it.
Reproducing the bug takes a few steps: create a world with cheats enabled and creative mode off, give a test player a helmet with a +10 maximum health modifier, equip it so the maximum becomes 30, heal the player above 20, then save, exit and rejoin. Without the mod the health returns to 20; with the mod it does not. The mod requires Bookshelf, Fabric API and Prickle on Fabric, and Bookshelf and Prickle on the other loaders.
The mod is open source under the GNU Lesser General Public License v2.1 only, and its source code and issue tracker are publicly linked. It is published for Fabric, Forge, NeoForge and Quilt across 21 release versions, 1.16.5 – 26.3. Insane's Survival Overhaul requires it.
Key features
Preserved maximum health
A maximum health raised above 20 is kept after the world is saved and reloaded, instead of reverting to 20.
Server-wide fix
When run on a server, the correction applies to all connected players, including those without the mod on their client.
Singleplayer fix
On a client, the correction applies to singleplayer worlds, so the raised maximum persists locally.
Reproducible test steps
The author text lists a step-by-step test using a helmet with an attribute modifier, which shows the bug with and without the mod.
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x1 of 1 version with builds
1.20.x5 of 5 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
1.17.x1 of 1 version with builds
1.16.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Required by 1 mod
Use cases
Survival with health gear
Players who rely on armor or items that increase maximum health keep those bonuses between sessions.
Multiplayer servers
Server owners install the mod once so every player's raised maximum health survives a rejoin.
Who it’s for: Players and server owners who use equipment that raises maximum health and have seen it reset after saving and rejoining a world.
How it compares
Max Speed is a server-required mod with a MIT License, published for Fabric, Forge, NeoForge and Quilt across 1.16 – 26.3, and it is not open source. Health Plus is client and server, under the Apache License 2.0, and published for Fabric, Forge and NeoForge across 1.20 – 26.2. Health Enchantment is server-required with an open source AGPL v3.0 or later license, covering 1.21 – 26.3.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Max Health Fix | Fabric, Forge, NeoForge and Quilt | 1.16.5 – 26.3 | Client and server | 2026-09-25 |
| Max Speed | Fabric, Forge, NeoForge and Quilt | 1.16 – 26.3 | Server required, client optional | 2026-08-14 |
| Health Plus | Fabric, Forge and NeoForge | 1.20 – 26.2 | Client and server | 2026-06-22 |
| Health Enchantment | Fabric, Forge, NeoForge and Quilt | 1.21 – 26.3 | Server required, client optional | 2026-10-07 |
Questions
Does Max Health Fix need to be installed on both sides?
What does Max Health Fix require?
Which game versions does Max Health Fix support?
In the catalog
Max Health Fix is one of 17,631 Equipment mods on ModsFinder, and one of 8,894 Equipment mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Darkhax
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What the author says
This mod fixes an old bug in Minecraft that causes the "Max Health" attribute to be ignored when a player joins the game. This bug will cause players with a health value greater than the default limit of 20 to be reset back down to 20 when they join the game. For example if the player is wearing a helmet that gives…
Official listing
- Modrinth page
- modrinth.com/mod/max-health-fix
- Owner
- Darkhax
- Published
- 2023-06-08
- Updated on Modrinth
- 2026-09-25
- Facts verified
- 2026-10-15