Modern chunk detector
This mod shows you if a chunk is new (1.19+), can be useful on server like 2b2t or 9b9t
Screenshots
About this Mod
Modern chunk detector
This mod is a tool that can be used on server that updated their version from a really old version like 1.12 to a more recent one like 1.20. This mod will display a pink overlay on new chunks similar to the chunk border debug option (F3+G).
How to use it
You can toogle the visibility ON/OFF using the keybind (default is O) that can be changed in settings>controls>keybinds
How does it works/Limtations
This mod looks in the ground to find if there is copper or ancient debris and if so marks the chunk as new. This means that if there is an anticheat like anti-x-ray the mod will probably get a ton of false positive.
Screenshots
Contact
If for any reason you want to contact me I'm on Discord: @ayabusa_
Available Versions
How to Install Modern chunk detector 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 (1.21.10).
Install Mod
Open the mod browser in the dashboard and search for "Modern chunk detector". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.10, 1.21.8, 1.21 (+1 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Modern chunk detector 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 (1.21.10). You can switch loaders with one click in the panel.
Is Modern chunk detector compatible with fabric?
Modern chunk detector officially supports fabric for Minecraft 1.21.10, 1.21.8, 1.21. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Modern chunk detector – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Modern chunk detector 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 Modern chunk detector with just one click on your server.