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This article is about the HUD element. For the command, see Commands/bossbar.
Gear (item)
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The specific instructions are: An image of the ender dragon and wither bossbars.

A bossbar is a bar that can track a boss mob's health or the total health of raid mobs.

Manual creation[]

Jigsaw Block (top texture) JE2 BE2
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A bossbar can be shown using the /bossbar command. ‌[Java Edition only]

Natural creation[]

Boss mobs[]

This section is missing information about the specific area near a wither where you get to see a bossbar. 
Please expand the section to include this information. Further details may exist on the talk page.

A bossbar appears in the top center of the screen when near a wither or ender dragon.

For the ender dragon's bossbar to appear, the player must be within a Euclidean distance of 192 blocks from the coordinates (0.0, 192, 0.0) in the End dimension.[needs testing]

For the wither's bossbar to appear, the player must be loading the chunk the wither is in and be within 24 chunks and 3.5 blocks of a chunk the wither is in.

Raids[]

This section is missing information about the specific area near a raid center where you get to see a bossbar. 
Please expand the section to include this information. Further details may exist on the talk page.

When a player is within a 93 radius of the center of a raid, a raid bossbar appears, showing the total health of all raid mobs present during the current wave.

Parts[]

Color[]

The bossbar has colors depending on which boss mob or event is active.

The ender dragon has a color of pink. The wither has a dark purple‌[Java Edition only] or pink‌[Bedrock Edition only] bossbar. The raid bossbar has a color of red.

ID system[]

A bossbar has an ID, which can be used to do certain actions with one bossbar. An ID is not shown on the creation of the bossbar[verify], so you can't see it.

Removing[]

Jigsaw Block (top texture) JE2 BE2
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A bossbar can be disabled by using /bossbar remove <id>.[more information needed]

Issues[]

Issues relating to "Bossbar" are maintained on the bug tracker. Report issues there.

History[]

Java Edition
1.0Beta 1.9 Prerelease 6Added bossbars.
The only color is pink.
Ender dragons use bossbars.
"Boss health" was displayed over the bossbar.
1.4.212w34aWithers use bossbars.
Added bars.png, which has pink, cyan, orange, green, yellow, purple, and white bossbars, as well as textures for notches.
12w34bAdded boss names above the wither.[verify]
1.513w05bEnder dragons now properly display their names above their bossbar.[1]
1.915w31aWithers now have a purple bossbar.
Multiple bossbars can now show without overlapping.
Bossbars are no longer briefly visible after respawning or opening a new world.[2]
Bossbars are now visible even when the boss is not being looked at.[3]
16w02aEnder dragons created using /summon no longer show a health bar.
1.1116w32aEnder dragons with custom names now show their name above their bossbar.[4]
1.11.116w50aWithers with custom names now show their name above their bossbar.[4][5]
1.1318w02aUnnamed ender dragons now show "entity.EnderDragon.name" above their bossbar, rather than "Ender dragon".[6]
18w03aEnder dragons now show "Ender Dragon" again.[6]
18w05aAdded the /bossbar command, which can create a custom bossbar.
1.1418w47aRaids use bossbars.
18w49aThe raid bossbar now slowly fills up when a raid is triggered or when a wave is cleared.
19w13bNotched bossbars now display correctly when more than one is active.[7]
1.1620w17aBossbars with scores now update correctly when reloading the world.[8]
1.1922w11aNotched bossbars now display correctly when more than one is active.[more information needed][9]

References[]

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