Showing 176 open source projects for "webassembly"

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  • 1
    v86

    v86

    x86 PC emulator and x86-to-wasm JIT, running in the browser

    v86 is an open-source x86 PC emulator that runs entirely in the browser using WebAssembly for near-native performance. It translates x86 machine code into WebAssembly at runtime, enabling users to boot and run full operating systems without installing anything locally. The emulator supports a wide range of legacy systems, including Linux, Windows 95/98/2000, FreeDOS, and various experimental OSes. It simulates essential hardware components such as CPU, memory, VGA graphics, sound cards, network adapters, and storage controllers. ...
    Downloads: 4 This Week
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  • 2
    TinyGo

    TinyGo

    Go compiler for small place

    TinyGo brings the Go programming language to embedded systems and to the modern web by creating a new compiler based on LLVM. You can compile and run TinyGo programs on over 60 different microcontroller boards such as the BBC micro:bit and the Arduino Uno. TinyGo can also produce WebAssembly (WASM) code which is very compact in size. You can compile programs for web browsers, as well as for server and edge computing environments that support the WebAssembly System Interface (WASI) family of interfaces. TinyGo is a Go compiler intended for use in small places such as microcontrollers, WebAssembly (Wasm), and command-line tools. ...
    Downloads: 3 This Week
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  • 3
    webR

    webR

    The statistical language R compiled to WebAssembly via Emscripten

    webR is a project that compiles the R statistical programming language into WebAssembly, enabling it to run entirely within web browsers or JavaScript environments without requiring a server-side installation. By using Emscripten to adapt R’s C, C++, and Fortran codebase, webR creates a fully functional runtime that can execute R scripts directly in the browser. The project includes a web-based integrated development environment that uses tools like xterm.js and CodeMirror, allowing users to interact with R through a familiar console and editor interface. ...
    Downloads: 1 This Week
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  • 4
    redshirt

    redshirt

    Operating system

    ...The project is still experimental but serves as a research platform for exploring how WebAssembly can be used as a foundation for operating systems.
    Downloads: 1 This Week
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  • 5
    wasm-bindgen

    wasm-bindgen

    Facilitating high-level interactions between Wasm modules and Js

    wasm-bindgen is a foundational Rust tool that enables seamless interoperability between Rust and JavaScript by generating the necessary bindings and glue code for WebAssembly modules. It allows developers to write performance-critical code in Rust, compile it to WebAssembly, and then expose functions, structs, and APIs directly to JavaScript in a natural and idiomatic way. The tool automates the process of bridging differences between Rust’s type system and JavaScript’s dynamic environment, making cross-language integration significantly easier. ...
    Downloads: 1 This Week
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  • 6
    runwasi

    runwasi

    Facilitates running Wasm / WASI workloads managed by containerd

    runwasi is a project developed within the containerd ecosystem that enables running WebAssembly workloads as first-class citizens in containerized environments. It provides a library and runtime components that integrate with containerd, allowing Wasm modules to be executed using familiar container orchestration workflows such as Kubernetes via the Container Runtime Interface. Unlike traditional containers that rely on operating system virtualization, runwasi focuses on lightweight, secure execution of WebAssembly modules, which can offer faster startup times and reduced resource overhead. ...
    Downloads: 0 This Week
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  • 7
    wa-sqlite

    wa-sqlite

    WebAssembly SQLite with support for browser storage extensions

    wa-sqlite is a WebAssembly build of SQLite that enables developers to run a fully functional relational database engine inside web browsers or other JavaScript environments. Unlike traditional SQLite builds, this project emphasizes extensibility by allowing developers to implement custom virtual file systems entirely in JavaScript, which enables flexible storage backends such as IndexedDB or the Origin Private File System.
    Downloads: 0 This Week
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  • 8
    Pyodide

    Pyodide

    Pyodide is a Python distribution for the browser and Node.js

    Pyodide brings the Python runtime to the browser by compiling Python and its scientific libraries to WebAssembly. It allows developers to run Python code directly in web browsers without a server, supporting packages like NumPy, Pandas, and Matplotlib. Pyodide opens up new possibilities for interactive data analysis, scientific computing, and educational tools in web environments, all while integrating seamlessly with JavaScript.
    Downloads: 2 This Week
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  • 9
    Union

    Union

    Serverless backend platform for Web3-native app development

    ...It provides a serverless execution layer with built-in authentication, event handling, and state management tailored for decentralized systems. Developers can write backend logic using WebAssembly and deploy logic that interacts with smart contracts and blockchain data without managing infrastructure.
    Downloads: 0 This Week
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  • 10
    Ruffle

    Ruffle

    A Flash Player emulator written in Rust

    Ruffle is an open-source emulator for Adobe Flash Player, written primarily in Rust, and targeted at both desktop applications and web browsers via WebAssembly. Its goal is to enable legacy Flash content—animations, games, interactive media—to continue running safely and reliably after official Flash support was discontinued. On the web side, Ruffle is embedded into pages or installed as a browser extension; in the desktop version, it can open .swf files directly or embed them in applications. ...
    Downloads: 48 This Week
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  • 11
    Stlite

    Stlite

    n-browser Streamlit

    Stlite is a WebAssembly-powered framework that enables Streamlit applications to run entirely in the browser without requiring a Python backend server. It achieves this by using Pyodide, a WebAssembly-based Python runtime, to execute Python code directly within the browser environment. This allows developers to build interactive data applications using familiar Streamlit APIs while eliminating the need for server-side infrastructure.
    Downloads: 0 This Week
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  • 12
    ReactPy

    ReactPy

    It's React, but in Python

    ReactPy provides a React-style component model for Python developers to build web frontends without JavaScript. Components and hooks create declarative, reactive UIs, working across frameworks like Flask, Django, Jupyter, and more. With WebAssembly support for performance, ReactPy aims to empower Python-native frontend development.
    Downloads: 0 This Week
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  • 13
    EmulatorJS

    EmulatorJS

    A web-based frontend for RetroArch

    EmulatorJS is a web-based frontend for RetroArch that allows users to run retro games directly in a browser without requiring local emulator installations. Built using JavaScript and WebAssembly technologies, it provides access to a wide range of console and arcade systems through a unified interface. The project functions as a library or plugin rather than a standalone application, enabling developers to embed emulation capabilities into websites or custom platforms. It offers multiple build versions, including stable, latest, and nightly, allowing users to balance reliability and cutting-edge features depending on their needs. ...
    Downloads: 16 This Week
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  • 14
    Stremio

    Stremio

    Stremio - Freedom to Stream

    Stremio is the browser application that delivers Stremio’s “Freedom to Stream” experience entirely on the web. It consumes stremio-core (compiled to WebAssembly) and renders the product surfaces you recognize: Board for personalized updates, Discover for browsing catalogs, and Meta Details for titles, seasons, and streams. The app is built with JavaScript/TypeScript and a conventional web toolchain, offering simple commands for local development, testing, and production builds. It manages add-on installation and configuration in-app, letting users combine official and community sources without leaving the UI. ...
    Downloads: 35 This Week
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  • 15
    egui

    egui

    egui: an easy-to-use immediate mode GUI in Rust

    egui is a portable, Rust-native immediate mode GUI library that runs natively and in browsers (compiled to WebAssembly). It emphasizes ease of use, simplicity, and portability—ideal for lightweight applications, tools, and embedding into game engines or Rust applications.
    Downloads: 0 This Week
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  • 16
    Perspective

    Perspective

    A data visualization and analytics component

    Perspective is a high-performance data visualization library for building real-time, interactive analytics dashboards. Developed by FINOS, it supports WebAssembly-powered pivot tables and can handle large streaming datasets with speed and flexibility. Perspective is ideal for fintech, trading, and IoT applications where insights from live data need to be visualized, sliced, and explored quickly in a browser.
    Downloads: 0 This Week
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  • 17
    Aidoku

    Aidoku

    Free and open source manga reader for iOS and iPadOS

    Aidoku is a free and open-source manga reading application for iOS and iPadOS that provides a customizable and ad-free experience for consuming manga content from a variety of sources. The app is designed with a modular architecture that uses a WebAssembly-based source system, allowing external extensions to handle content retrieval while keeping the core application lightweight. It supports both online reading through external providers and offline reading via downloaded content, offering flexibility for different usage scenarios. Users can organize their library, track reading progress, and integrate with external tracking services such as AniList and MyAnimeList. ...
    Downloads: 19 This Week
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  • 18
    Gloo

    Gloo

    A modular toolkit for building fast, reliable Web applications

    Gloo is a modular toolkit for building web applications in Rust using WebAssembly, providing ergonomic abstractions over low-level browser APIs. Instead of acting as a full framework, Gloo is designed as a collection of small, focused libraries that developers can use individually or together depending on their needs. It wraps complex bindings from libraries like web-sys and js-sys, making browser APIs easier to use in idiomatic Rust while maintaining performance and type safety. ...
    Downloads: 0 This Week
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  • 19
    wasm-pack

    wasm-pack

    Your favorite rust -> wasm workflow tool!

    This tool seeks to be a one-stop-shop for building and working with rust-generated WebAssembly that you would like to interop with JavaScript, in the browser or with Node.js. wasm-pack helps you build rust-generated WebAssembly packages that you could publish to the npm registry, or otherwise use alongside any javascript packages in workflows that you already use, such as webpack. This project is a part of the rust-wasm group.
    Downloads: 5 This Week
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  • 20
    workerd

    workerd

    The JavaScript / Wasm runtime that powers Cloudflare Workers

    workerd is the server runtime that powers Cloudflare Workers — a modern, standards-aligned JavaScript and WebAssembly execution environment that can be run outside of Cloudflare’s global edge network as a standalone server or proxy. Designed to host serverless applications written to the Workers platform API (including fetch() and Web standard libraries), workerd enables developers to self-host edge-style workloads in local data centers or development environments, or to test Workers code offline before deploying to the cloud. ...
    Downloads: 2 This Week
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  • 21
    clip-js

    clip-js

    online video editor built with nextjs, remotion and ffmpeg

    ...It enables users to create and edit video compositions using a timeline interface, combining video, audio, images, and text layers into a single project. The system uses a WebAssembly port of FFmpeg to perform high-quality rendering, allowing export of videos without relying on server-side processing. It includes interactive controls for trimming, splitting, and arranging media elements with precise timing. The editor supports dynamic adjustments such as opacity, positioning, and layering to fine-tune compositions. ...
    Downloads: 4 This Week
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  • 22
    Sandspiel

    Sandspiel

    Creative cellular automata browser game

    Sandspiel is an interactive, browser-based cellular automata simulation game that allows users to experiment with physics-like behaviors using simple elements such as sand, water, fire, and plant matter. Built with Rust compiled to WebAssembly and rendered using WebGL, it achieves high-performance simulation directly in the browser without requiring installation. The project focuses on creative exploration, enabling users to draw elements onto a canvas and observe emergent behaviors as they interact in real time. Its simulation engine models particle dynamics and fluid interactions, creating visually engaging and often unpredictable outcomes that mimic natural processes. ...
    Downloads: 3 This Week
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  • 23
    database.build

    database.build

    In-browser Postgres sandbox with AI assistance

    database.build is an innovative in-browser development environment that allows users to instantly create and interact with fully functional PostgreSQL databases directly within their browser, powered by WebAssembly technology. It eliminates the need for traditional database setup by running a lightweight version of PostgreSQL locally using PGlite, enabling developers to experiment, prototype, and analyze data without relying on external servers. Each database instance is paired with a large language model, allowing users to perform tasks such as generating schemas, importing CSV data, building diagrams, and creating reports using natural language interactions. ...
    Downloads: 3 This Week
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  • 24
    MoonZoon

    MoonZoon

    Rust Fullstack Framework

    ...It is built around a reactive programming model where UI updates are automatically triggered by changes in application state, reducing the need for manual DOM manipulation or complex state management patterns. The framework leverages WebAssembly for the frontend, allowing Rust code to run directly in the browser while maintaining high performance and type safety. On the backend, MoonZoon provides a server component that integrates seamlessly with the frontend, enabling efficient communication and shared logic across the application. It emphasizes simplicity and productivity by offering a cohesive architecture that minimizes boilerplate and promotes clear data flow.
    Downloads: 1 This Week
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  • 25
    Emulators written in JavaScript

    Emulators written in JavaScript

    A list of emulators written in the JavaScript programming language

    ...The project originated as a collection of emulators shared within developer communities and has grown into a valuable reference for anyone interested in web-based emulation technologies. It highlights the versatility of JavaScript and WebAssembly in recreating legacy hardware environments directly within a browser. By aggregating these projects, JSEmu provides an accessible entry point for exploring different emulator implementations and comparing approaches across systems.
    Downloads: 0 This Week
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