: Users report achieving a solid 60 FPS on older hardware (like an i7-6600u) using the WASM build, compared to significantly lower rates on standard 1.8.8 ports.
Technically, Eaglercraft relies on two core technologies:
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The wasm_gc extension solves this problem. It is a new WebAssembly feature proposal that adds garbage collection capabilities to the WASM runtime. This means that languages with managed memory, like Java, can now be compiled to WASM and run efficiently, with the browser's engine handling the complex task of memory cleanup.
is an experimental, performance-optimized port of Minecraft 1.12.2 designed to run directly in a web browser using WebAssembly with Garbage Collection (WASM-GC) . Unlike previous versions that relied on JavaScript (TeaVM), this version uses WASM to provide a significant FPS boost and better resource management. Key Features and Developers : Users report achieving a solid 60 FPS
The move to a WebAssembly build with built-in Garbage Collection (GC) is a game-changer for browser-based Minecraft. Historically, Eaglercraft relied on transpiling Java to JavaScript (TeaVM), which often hit performance ceilings due to how browsers handle memory. By leveraging WASM GC, this version communicates more directly with the browser's engine, resulting in a significantly more stable and efficient experience. Performance & Gameplay Frame Stability
Eaglercraft 1.12 WASM GC: The Next Frontier of Browser-Based Gaming It is a new WebAssembly feature proposal that
This allows compilers (like TeaVM, Kotlin/Wasm, or a custom Java-to-WASM-GC pipeline) to preserve Java’s object model and rely on the browser’s built-in GC — which runs concurrently with rendering.
: "GC" stands for Garbage Collection . In standard WebAssembly, developers must manage memory manually (allocating and freeing blocks of RAM). WebAssembly Garbage Collection (WASM-GC) allows the program to delegate memory management straight to the browser's highly-optimized native garbage collector. This reduces overhead, prevents memory leaks, and eliminates micro-stutters during heavy chunk loading. JavaScript vs. WASM-GC: The Ultimate Performance Leap
The wasm_gc technology and its application in Eaglercraft 1.12 are still in their early stages. As WebAssembly continues to evolve, we can expect:
