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Bossbar

by boyonk · for Minecraft

Create health bars for bosses or entities: easy, performance-friendly, feature-rich.

16KDownloads
5 mo agoLast updated
LicenseRef-All-Rights-ReservedLicense
FabricLoaders

About Bossbar

From Modrinth

Create health bars for bosses or entities: easy, performance-friendly, feature-rich.

Bossbar

Enhancing Minecraft's bossbar functionality by properly extending it to entities. No more complicated command block setup, lag-inducing detection logic, and cheap attempts at recreating the real deal. This is the real deal now.

✅ Features

  • Entity bossbars take the name, health and max health of its entity.
  • Range can be specified for entity bossbars, meaning it's only visible to local players.
  • Default bossbars can be configured (see Configuration)
  • Thicken fog & darken skies with the extended functionality given to entity bossbars.
  • Server-side, meaning clients don't need to download it to connect.
  • Easy to use with the ``/bossbar`` command, swap out a bossbar id with a target selector, and done!
  • Optimized to a lagless extend, compared to Minecraft's bulky command code.

⚙️ Configuration

Configuration can be found in ``config\bossbar.json``.

Set the entity bossbar's range. Defaults to ``64``. Any player outside of this range won't see the entity bossbar.

  • ``darken_sky``: bool\

Set if entity bossbar darkens the sky. Defaults to ``false``.

  • ``thicken_fog``: bool\

Set if entity bossbar thickens the fog. Defaults to ``false``.

  • ``color`: `(blue|green|pink|purple|red|white|yellow)``\

Set the entity bossbar's bar color. Defaults to ``purple``.

  • ``style`: `(notched_6|notched_10|notched_12|notched_20|progress)``\

Set the entity bossbar's visual amount of segments. Defaults to ``progress``.

  • ``register_before_vanilla``: bool\

Register the command extension before vanilla, attempting to parse the bossbar argument as an entity before a server bossbar id. Defaults to ``false``.

📖 Syntax

  • ``bossbar set <target> (visible|range|darken_sky|thicken_fog|color|style)``
  • ``... visible <visible>``\

Set the entity bossbar's visibility. Defaults to ``false`` for every entity, disabling their bossbar.

  • ``... range <range>``\

Set the entity bossbar's range. Defaults to ``64``. Any player outside of this range won't see the entity bossbar.

  • ``... darken_sky <darken_sky>``\

Set if entity bossbar darkens the sky. Defaults to ``false``.

  • ``... thicken_fog <thicken_fog>``\

Set if entity bossbar thickens the fog. Defaults to ``false``.

  • ``... color (blue|green|pink|purple|red|white|yellow)``\

Set the entity bossbar's bar color. Defaults to ``purple``.

  • ``... style (notched_6|notched_10|notched_12|notched_20|progress)``\

Set the entity bossbar's visual amount of segments. Defaults to ``progress``.

📦 Arguments

  • ``<target>``: entity
  • Specifies the entity whose bossbar is to change.\

Must be a player name, a target selector or a UUID.

  • ``<visible>``: bool
  • Specifies the bossbar's visibility.\

Must be either ``true` or `false``.

  • ``<range>``: integer
  • Specifies the bossbar's range.\

Must be a 32-bit integer number between ``0` and `2147483647`` (inclusive).

  • ``<darken_sky>``: bool
  • Specifies if the bossbar darkens the sky.\

Must be either ``true` or `false``.

  • ``<thicken_fog>``: bool
  • Specifies if the bossbar thickens the fog.\

Must be either ``true` or `false``.

Highlights

From source data

Game versions

Supports 16 Minecraft versions, the newest being 26.1.2.

Loaders

Runs on Fabric.

Footprint

Rated a light load on a server.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

Performance

Makes the game or server run faster or lighter without changing how it plays.

Runs on your server

From source side support

Modrinth lists Bossbar as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game
Minecraft
Loaders
Fabric
Runs on
Serverrequired on the server
Game versions
26.1.2 and 15 earlier

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
  • ✓Authorboyonk, as published on Modrinth
  • ✓LicenseLicenseRef-All-Rights-ReservedFree

Bossbar, answered

Generated from the mod’s own source data.

Do my players need to install Bossbar?

Modrinth lists Bossbar as required on the server. Check its Modrinth page to see whether players need it too.

Which loaders does it support?

Fabric.

Is it free?

Yes. Bossbar is free to download from Modrinth. Its license is LicenseRef-All-Rights-Reserved.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Bossbar on a Minecraft server.

Deploy in about a minute from $4.20 a month, then add Bossbar in one click.