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Dev tools · alternatives · 2026

24 alternatives to Percy – A Rust and WebAssembly isomorphic virtual DOM implementation

Build frontend browser apps with Rust + WebAssembly. Supports server side rendering. - chinedufn/percy

Percy is a virtual DOM library written in Rust that compiles to WebAssembly, enabling developers to build isomorphic web applications. It allows the same code to run on both the server and client side, reducing… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Percy – A Rust and WebAssembly isomorphic virtual DOM implementation launched in 2018; newer entries below may have overtaken it.

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    A little Python library for making simple Electron-like HTML/JS GUI apps - python-eel/Eel

    2018 · github.com · its alternatives →

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    Ultra fast, scalable and fully collaborative prototyping

    2016 · atomic.io · its alternatives →

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    Build performant, native and cross-platform desktop applications with native Svelte + powerful CSS-like styling.🚀 - nodegui/svelte-nodegui

    2021 · github.com · its alternatives →

  5. 5IW

    Hey HN! I've been working on a book about WebAssembly over the last few months, and it's finally available at http://levelupwasm.com! Why a book on WebAssembly you ask? Well... WebAssembly is awesome (obviously ) but it's certainly not the easiest thing to learn. So I wrote this book as a practical intro to using WebAssembly in your web apps. I would appreciate any feedback!

    2019 · its alternatives →

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    This is the entire Firefox browser rendering to a element. Gecko, all UI components, and the Spidermonkey JS engine are all compiled and running in WebAssembly. Here are a few things you might find interesting: - This is fully end to end encrypted! We use the WISP protocol for TCP-over-websockets. - There is a novel WASM->JS JIT for experimental site speedup - This port cost over 25k in opus/fable tokens for debugging and JIT research This was just a fun experiment to push the boundaries of WebAssembly. For a more usable "browser in browser" experience, we also built…

    Jul 2026 · developer.puter.com · its alternatives →

  7. 7RJ

    A JavaScript library for programming graphic design systems with SVG

    2015 · runemadsen.github.io · its alternatives →

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    Lunatic is an Erlang-inspired runtime for WebAssembly - lunatic-solutions/lunatic

    2020 · github.com · its alternatives →

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    📝 Web-based, reactive Datalog notebooks for data analysis and visualization - ekzhang/percival

    2021 · github.com · its alternatives →

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    Hey HN, This is Jan, founder of Apify, a web scraping and automation platform. Drawing on our team's years of experience, today we're launching Crawlee [1], the web scraping and browser automation library for Node.js that's designed for the fastest development and maximum reliability in production. For details, see the short video [2] or read the announcement blog post [3]. Main features: - Supports headless browsers with Playwright or Puppeteer - Supports raw HTTP crawling with Cheerio or JSDOM - Automated parallelization and scaling of crawlers for best performance - Avoids blocking using…

    2022 · crawlee.dev · its alternatives →

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    Using wasm-bindgen, and the tween-rs crate

    2024 · rustween.mtassoumt.uk · its alternatives →

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    An agnostic, reactive & minimalist (3kb) JavaScript UI library with direct access to native DOM.

    2021 · caldom.org · its alternatives →

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    Build Cross Platform HTML Desktop Apps on .NET using native GUI, HTML5, JavaScript, CSS, Owin, AspNetCore (MVC, RazorPages, Blazor) - chromelyapps/Chromely

    2018 · github.com · its alternatives →

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    Here's a project I've been working on for a little while now. Ripl is a JS library that provides a unified API for rendering shapes on both canvas and SVG interchangeably. Over the years I've used D3 extensively to create data visualisations so I figured I'd have a go at making my own version with a slightly more modern API and stricter TypeScript support. I am aware there are already libraries that can draw to multiple contexts interchangeably, but I've added a few little niceties to Ripl that (as far as I know) some other libraries don't have such as CSS-like query selectors, DOM-like…

    2024 · github.com · its alternatives →

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    I use this library I made for Vectors and Quaternions in many personal projects. I've open-sourced it, in case anyone else would get use out of it. I use this on various projects, including quadcopter firmware, a graphics engine, a cosmology simulation, and several molecular dynamics applications. No_std compatible.

    2025 · github.com · its alternatives →

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    speed up Python with Rust via WebAssembly - Oct 2020 - savarin/bridge

    2020 · github.com · its alternatives →

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    Hi everyone, I built a runtime to isolate untrusted code using wasm sandboxes. Basically, it protects your host system from problems that untrusted code can cause. We’ve had a great discussion about sandboxing in Python lately that elaborates a bit more on the problem [1]. In TypeScript, wasm integration is even more natural thanks to the close proximity between both ecosystems. The core is built in Rust. On top of that, I use WASI 0.2 via wasmtime and the component model, along with custom SDKs that keep things as idiomatic as possible. For example, in Python we have a simple decorator:…

    Feb 2026 · github.com · its alternatives →

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    Chrome Devtools Protocol rust API. Contribute to mattsse/chromiumoxide development by creating an account on GitHub.

    2020 · github.com · its alternatives →

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    A (WIP) WebAssembly System Interface implementation for Deno - caspervonb/deno-wasi

    2020 · github.com · its alternatives →

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    Hey HN, this is Will and David from Fortress (https://news.ycombinator.com/item?id=41426998). We use a lot of async Rust internally, and created this library out of a need for an async-aware concurrent hashmap since there weren’t many available in the Rust ecosystem. Whirlwind is a sharded HashMap with a fully asynchronous API. Just as dashmap is a replacement for std::sync::RwLock, whirlwind aims to be a replacement for tokio::sync::RwLock. It has a similar design and performance characteristics to dashmap, but seems to perform better in read-heavy workloads with tokio's…

    2024 · github.com · its alternatives →

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    New binary format for compiling applications for the web

    2015 · github.com · its alternatives →

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    "Game" is a stretch, but I put together this repo containing a pure Rust app which uses SDL2 and compiles to WASM (and can be run in a browser). Older resources were a bit out of date and a bit too verbose for my purposes, so here's a minimal working example.

    2024 · github.com · its alternatives →

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    crates.io serves as a central registry for sharing crates, which are packages or libraries written in Rust that you can use to enhance your projects

    2022 · crates.io · its alternatives →

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    Python library for embedding large graphs in 2D space, using force-directed layouts. - H4kor/graph-force

    2022 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →