JumpBoostBar
by literal.uu
JumpBoostBar lets players charge a jump by holding sneak, with the charge shown on the experience bar, and release it for a higher leap while a Jump Boost effect is active.
What it does
Holding sneak builds a charge that is displayed on the experience bar. Releasing the key performs the jump, and the height depends on how long the charge was held and on the level of the Jump Boost potion effect currently active. Without that effect, the charge has no added height to give.
The mod is published for Fabric and NeoForge. Its builds cover 1.21 – 26.1 on 13 release versions, and the latest file is 1.2.2-universal-bugfix for 1.21.11, dated 2026-06-02. It is released under the GNU General Public License v3.0 only and is open source, with source code and an issue tracker available. Paper, Purpur and Folia are listed as server platforms.
The code keeps gameplay logic in a shared module and places loader adapters and event wiring in separate loader modules, so one feature set is maintained across targets.
Key features
Chargeable jumps
Holding sneak charges a jump, and releasing the key launches the player upward.
Visual charge feedback
The current charge level is drawn on the experience bar so players can read it while charging.
Jump Boost scaling
A higher Jump Boost level raises the height of a charged jump, so the potion effect adds to the charge.
Jump Boost Integration support
The mod works alongside Jump Boost Integration, which is named by its author as a companion.
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Parkour and platforming
Charged jumps let players clear wider gaps in parkour courses and custom maps while Jump Boost is active.
Adventure and exploration
Players crossing terrain with ledges or obstacles can use a charged leap instead of climbing.
Who it’s for: Players who use Jump Boost on Fabric or NeoForge and want a charge-and-release jump, and server owners whose players want to know which platforms the mod targets.
Questions
Which loaders does JumpBoostBar support?
Does JumpBoostBar need to be installed on the server?
How is the jump height decided?
More from literal.uu
What the author says
Because who needs to build leg muscles when you can just... charge up and fly? It's not lazy, it's efficient. This mod/plugin allows you to charge a jump by sneaking, and then release to perform a super jump! The height of the jump is determined by how long you charge it and your current Jump Boost potion effect.
Official listing
- Modrinth page
- modrinth.com/mod/jumpboostbar
- Owner
- literal.uu
- Published
- 2026-06-01
- Updated on Modrinth
- 2026-06-02
- Facts verified
- 2026-10-15