LibZoomer
A library that allows mods to easily implement zooming. The zoom are theirs!
About this Mod
Deprecation Note
LibZoomer has been merged back into Ok Zoomer since Ok Zoomer 10.0.0. Maintaining the codebase as a separate library while keeping it on its best possible state has stopped being feasible for a while, and merging it back will allow us to deliver the best zoom mod possible.
If you were an user of this library or had interest on it, trust me, maintaining your own zoom will be more practical in the long run (and probably is the best learning experience you can have) than relying on a library that wasn't on its prime for a long while.
LibZoomer
LibZoomer is a library for Minecraft 1.17-1.21 that allows other mods to zoom easily while being able to customize it for their own needs. It is also the library that powers up Ok Zoomer!
More information for developers can be seen here. This library is intended to be bundled by mods who need it, therefore, players won't need to download it manually.
License
This mod is licensed under the MIT license. You can freely include the mod on any modpack with no permission. Usage of this library's code on other projects is allowed as long as attribution is given.
This library's icon makes usage of Twemoji assets, which are licensed under CC BY 4.0.
Available Versions
How to Install LibZoomer on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21).
Install Mod
Open the mod browser in the dashboard and search for "LibZoomer". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21, 1.21-rc1, 1.21-pre4 (+20 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
LibZoomer server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21). You can switch loaders with one click in the panel.
Is LibZoomer compatible with fabric and quilt?
LibZoomer officially supports fabric, quilt for Minecraft 1.21, 1.21-rc1, 1.21-pre4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with LibZoomer – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if LibZoomer consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install LibZoomer with just one click on your server.