
MCEF 1.16
MCEF is a mod and library for adding the Chromium web browser into Minecraft.
Screenshots

About this Mod
MCEF is a mod and library for adding the Chromium web browser into Minecraft.
MCEF is based on java-cef (Java Chromium Embedded Framework), which is based on CEF (Chromium Embedded Framework), which is based on Chromium. It was originally created by montoyo.
MCEF contains a downloader system for downloading the java-cef & CEF binaries required by the Chromium browser.
This library will auto download the latest version of the java-cef binaries required by the browser on the first launch. This requires an internet connection.
Use cases: With this mod you can build any GUI using HTML, CSS, or any of your prefered front end web technologies. For example, those are examples of GUI build with NextJS and TailwindCSS for a mod using this library build for Teras, a sidemod by me for my own Pixelmon server.
Full Screen Pokédex example:
You can even render it in your hands!
Current Chromium version: 116.0.5845.190
Supported Platforms
Windows 10/11 (x86_64, arm64)*
GNU Linux glibc 2.31 or greater (x86_64, arm64)**
*Some antivirus software may prevent MCEF from initializing. You may have to disable your antivirus or whitelist the mod files for MCEF to work properly.
**This mod will not work on Android.
Available Versions
How to Install MCEF 1.16 on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.16.5).
Install Mod
Open the mod browser in the dashboard and search for "MCEF 1.16". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.16.5
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
MCEF 1.16 server crashes on startup – what to do?
Most common cause: wrong forge 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 (1.16.5). You can switch loaders with one click in the panel.
Is MCEF 1.16 compatible with forge?
MCEF 1.16 officially supports forge for Minecraft 1.16.5. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with MCEF 1.16 – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if MCEF 1.16 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 MCEF 1.16 with just one click on your server.