Size by Health
by dousiyo
Size by Health makes a player's character grow or shrink in step with current health, with 20 HP as the normal size.
What it does
The player keeps the normal size at 20 HP. Health below that value gradually shrinks the character, and health above it gradually enlarges the character, so the current health level shows up in how the player looks on screen. The fixed 20 HP baseline acts as the reference for every scale change.
The mod is a single-mechanic addition with no other systems attached. It is server required and client optional, so the server must run it while players may leave it out. Files are published for Fabric and NeoForge, targeting 26.1 – 26.1.2 with 26.1.2 as the latest build, and the mod is released under the MIT License but is not open source.
Key features
Health-driven scaling
Player size is calculated from the current health value compared with the standard 20 HP reference.
Shrinking below 20 HP
As health falls under 20 HP, the character becomes gradually smaller, making low health visible at a glance.
Growing above 20 HP
As health rises over 20 HP, the character becomes gradually larger, so recovery shows as a change in size.
Single focused mechanic
The mod does one thing, scaling the player by health, and adds no other content or systems.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Making health visible
Players who want health to be readable from the character's body rather than only from a HUD bar can use the mod for that purpose.
Light visual change
Servers that want a simple, noticeable visual effect tied to health can add the mod without changing other gameplay.
Who it’s for: Server owners who want a lightweight visual effect tied to health, and players on servers that run the mod who want their character's size to reflect their current health.
How it compares
Pehkui is a broader scaling mod for Fabric, Forge, NeoForge and Quilt covering 1.14.4 – 1.21.1, with a client and server environment and MIT License open source code. Health Based Mob Scaling is a Fabric mod for 1.21.11 with an optional environment and MIT License open source code, applying health-based scaling to mobs rather than to the player. SpyGlassMe is a Fabric mod for 1.21.6 – 1.21.8 that is client or server optional and not open source, released under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Size by Health | Fabric and NeoForge | 26.1 – 26.1.2 | Server required, client optional | 2026-04-18 |
| Pehkui | Fabric, Forge, NeoForge and Quilt | 1.14.4 – 1.21.1 | Client and server | 2024-06-19 |
| Health Based Mob Scaling | Fabric | 1.21.11 | Client or server, optional | 2026-03-22 |
| SpyGlassMe | Fabric | 1.21.6 – 1.21.8 | Client or server, optional | 2025-08-16 |
Questions
Does Size by Health need to be on the server?
Which loaders does Size by Health support?
Is Size by Health under a permissive license?
More from dousiyo
What the author says
Health Scale is a mod that changes player size based on current health. When a player is at 20 HP, they remain at their normal size. When their health drops below 20 HP, they gradually become smaller. When their health rises above 20 HP, they gradually become larger.
Official listing
- Modrinth page
- modrinth.com/mod/size-by-health
- Owner
- dousiyo
- Published
- 2026-04-18
- Updated on Modrinth
- 2026-04-18
- Facts verified
- 2026-10-15