Open-source C++ projects categorized as WASM Edit details

WebAssembly (abbreviated WASM) is a binary instruction format for a stack-​based virtual machine. WebAssembly is an open standard that defines a portable binary-code format for executable programs, and a corresponding textual assembly language, as well as interfaces for facilitating interactions between such programs and their host environment.

Top 16 C++ WASM Projects

  • filament

    Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WebGL2

    Project mention: Weird Vulkan Bug | reddit.com/r/vulkan | 2022-06-20

    I found this issue on github https://github.com/google/filament/pull/3190/files

  • SSVM

    WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.

    Project mention: Fermyon wants to reinvent the way programmers develop microservices | news.ycombinator.com | 2022-07-03
  • Scout APM

    Less time debugging, more time building. Scout APM allows you to find and fix performance issues with no hassle. Now with error monitoring and external services monitoring, Scout is a developer's best friend when it comes to application development.

  • asm-dom

    A minimal WebAssembly virtual DOM to build C++ SPA (Single page applications)

    Project mention: WebAssembly and C++ | news.ycombinator.com | 2022-06-27

    FWIW if you look around, C++ and Rust libraries for DOM manipulation exist (I haven't searched for other languages which compile to WASM):



    I think solving the problem of DOM access on the library level is exactly the right way to tackle this problem. The library user don't need to care about specific WASM features, and the library implementation can be simplified when those WASM features become available (and also implement per-browser fallback paths)

  • faust

    Functional programming language for signal processing and sound synthesis (by grame-cncm)

    Project mention: Isomorphic PC keyboard | reddit.com/r/isomorphickeyboards | 2022-05-14

    I've checked your site's code, you are using pre-recorded mp3 files. I guess the latency comes from the browser itself. Mine is generating the sound on demand, a webassembly program runs constant in the background. I used a special language for digital signal processing called Faust to make it - https://faust.grame.fr/ It has an export function that renders a working page that I just styled and added the virtual and pc keyboard code to it.

  • highway

    Performance-portable, length-agnostic SIMD with runtime dispatch

    Project mention: Tolower() in Bulk at Speed | news.ycombinator.com | 2022-06-27

    And if not, it may be possible to use unaligned loads/stores to handle the fringe in a single (final) iteration: https://github.com/google/highway#strip-mining-loops

    It is actually feasible to write vector-style code using SIMD instructions. Yes, the SIMD ISA is more complicated because of the various accumulated extensions, but this is what we currently have. And a bit larger code size (for one final loop iteration) doesn't seem to be a big deal.

  • wasm-fizzbuzz

    WebAssembly from Scratch: From FizzBuzz to DooM.

    Project mention: Show HN: How to compile C/C++ for WASM, pure Clang, no libs, no framework | news.ycombinator.com | 2022-04-11

    These are also good resources on using wasm without dependencies:



  • WaykiChain

    Public Blockchain as a Decentralized Finance Infrastructure Service Platform

    Project mention: WaykiChain is one of the most innovative cryptocurrencies currently on the market | reddit.com/r/u_TuanKreb | 2022-01-05
  • SonarQube

    Static code analysis for 29 languages.. Your projects are multi-language. So is SonarQube analysis. Find Bugs, Vulnerabilities, Security Hotspots, and Code Smells so you can release quality code every time. Get started analyzing your projects today for free.

  • cib

    clang running in browser (wasm)

    Project mention: Show HN: How to compile C/C++ for WASM, pure Clang, no libs, no framework | news.ycombinator.com | 2022-04-11

    That is half of what I would need for a project, the other half being Clang itself running in the browser (to use for teaching), in theory there is [1] since many years, but in practice it never worked for me (even now I get "Runtime error: memory access out of bounds")

    [1] https://tbfleming.github.io/cib/

  • WebGui

    An example demo of IMGUI (Immediate Mode GUI) on the web. Using only WebGL, GLFW and ImGui. Suitable for being compiled to web assembly (WASM).

    Project mention: 23,000 Devices ShippedFlipper Zero | news.ycombinator.com | 2022-05-13

    My next app will be C++/Qt compiled to Javascript with Emscripten and then run inside Electron.

    (Incidentally, someone made a Dear Imgui demo this way: https://jnmaloney.github.io/WebGui/imgui.html, minus involving Electron, of course.)

  • bergamot-translator

    Cross platform C++ library focusing on optimized machine translation on the consumer-grade device. Bindings to Python, JavaScript through WebAssembly.

    Project mention: Arm cores 2022: Cortex-X3, A715 and A510 are faster and more economical | reddit.com/r/hardware | 2022-06-28

    developed by https://browser.mt/

  • wasp

    🐝 Wasp : Wasm programming (language) (by pannous)

    Project mention: Ask HN: New Programming Language? | news.ycombinator.com | 2022-01-12
  • RoguelikeTutorial2020

    r/RoguelikeDev Does The Complete Roguelike Tutorial

  • EmGlue

    🕸️ Glue C++ to your browser! Universal bindings for JavaScript/Wasm using Glue and Embind.

  • AECforWebAssembly

    A port of ArithmeticExpressionCompiler from x86 to WebAssembly, so that the programs written in the language can run in a browser. The compiler has been rewritten from JavaScript into C++.

    Project mention: Exceptions: Yes or No? | reddit.com/r/cpp | 2022-07-04

    In my AEC-to-WebAssembly compiler, I am using custom exception types for internal compiler errors: CorruptCompilationContext, InvalidTypenameException and NotImplementedException. I am handling them in main.

  • chip8

    A simple chip-8 emulator in C++ using SDL2 with desktop & browser support (by atomheartother)

  • frontend.wasm

    Wasm frontend for Tolc

    Project mention: A C++ Bindings Compiler | news.ycombinator.com | 2022-03-08

    Hi everyone!

    Some friends and I were unhappy with how much work it was to use C++ from other languages. We were working in the optimizations industry and often had to prototype with python. Eventually, we created a tool to make it easier for C++ to talk to python (by generating pybind11). Later, javascript via WebAssembly was added as well. It's now at a point where it's very easy to just create a C++ library and use it from any of those languages without change. We're planning on slowly adding more languages as needed/requested. The next on the list are Swift and Kotlin.

    It does not require any change to your existing public interface, but simply reads it and creates the bindings off of that. It should also work on Linux (Debian), MacOS, and Windows (Visual Studio). Here's a small demo if you'd like to test:


    And here are the repositories with the source code:

    https://github.com/Tolc-Software/tolc - The executable

    https://github.com/Tolc-Software/frontend.py - The python bindings generator

    https://github.com/Tolc-Software/frontend.wasm - The WebAssembly bindings generator

    https://github.com/Tolc-Software/Parser - The C++ parser

    It is dual licensed with AGPL and, if someone wants, a commercial license as well.

    Would be cool if someone finds it useful!

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2022-07-04.

C++ WASM related posts


What are some of the best open-source WASM projects in C++? This list will help you:

Project Stars
1 filament 14,259
2 SSVM 3,386
3 asm-dom 2,639
4 faust 1,872
5 highway 1,659
6 wasm-fizzbuzz 1,389
7 WaykiChain 1,049
8 cib 758
9 WebGui 337
10 bergamot-translator 105
11 wasp 93
12 RoguelikeTutorial2020 26
13 EmGlue 18
14 AECforWebAssembly 15
15 chip8 4
16 frontend.wasm 1
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