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Browsercraft Alternatives
Similar projects and alternatives to browsercraft
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TinyGo
Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.
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Judge0 API
Robust, fast, scalable, and sandboxed open-source online code execution system for humans and AI.
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substrata
Metaverse client and server written in C++. Runs on Windows, Mac, Linux and Web. Custom 3D engine, networked physics and Lua scripting
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cheerpj-meta
Run Java 8 applications, libraries, applets, Java Web Start, and Oracle Forms on the web without legacy plugins.
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Templates
Ready-to-use templates for MudBlazor in different styles and layouts with all the basic setup already done for you (by MudBlazor)
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petrify
Compile your ML Models/ONNX Decision Trees (XGBoost, LightGBM, SciKit-Learn) straight to JVM Bytecode
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Emulatrix
Emulator with mobile compatibility designed for running in pure JavaScript pre-ECMAScript 2015 (no WebAssembly). Supports Sega Genesis, 32x, Nintendo, Super Nintendo, GameBoy, GameBoy Color, GameBoy Advance, MAME and DOS.
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edge-python
Single-pass SSA bytecode compiler and threaded-code stack VM for a sandboxed Python subset: NaN-boxed values, inline caching, super-instruction fusion, pure-function memoization, mark-sweep GC. Coverage-guided fuzzing; around 200 KB WebAssembly module runs in the browser.
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better browsercraft alternative or higher similarity.
browsercraft discussion
browsercraft reviews and mentions
Posts with mentions or reviews of browsercraft.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2026-06-06.
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Running Python code in a sandbox with MicroPython and WASM
The architecture is a fairly straightforward WebAssembly-native monolithic kernel. Most of the complexities come from making things work well within the browser constraints for real world, large apps.
We have quite a bit of experience on the topic however, these are previous projects of ours:
WebVM (https://webvm.io): x86 Debian shell running client-side in the browser via x86 -> WebAssembly JIT compilation
Browsercraft (https://browsercraft.cheerpj.com): Minecraft running unmodified in the browser via our WebAssembly JVM (CheerpJ)
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Endive: A JVM native WebAssembly runtime
Shameless plug: we solved the opposite problem, running any Java application in the browser via WebAssembly: https://labs.leaningtech.com/blog/cheerpj-4.3
And yes, it does run Minecraft as well :-) https://browsercraft.cheerpj.com/
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What Happened to WebAssembly
We use WebAssembly aggressively at Leaning Technologies across our tools.
WebAssembly makes it possible to:
* Run x86 binaries in the browser via JIT-ting (https://webvm.io)
* Run Java applications in the browser, including Minecraft (https://browsercraft.cheerpj.com)
* Run node.js containers in the browser (https://browserpod.io)
It's an incredibly powerful tool, but very much a power-user one. Expecting your average front-end logic to be compiled that WebAssembly does not make much sense.
- CheerpJ 4.1: Java in the browser, now supporting Java 17 (preview)
- Java Minecraft in the Browser
- Browsercraft – Unmodified Minecraft 1.2.5 in the browser
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A note from our sponsor - SaaSHub
www.saashub.com | 13 Jul 2026
Stats
Basic browsercraft repo stats
6
164
7.2
3 months ago
leaningtech/browsercraft is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of browsercraft is Svelte.
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