Svelte WASM

Open-source Svelte projects categorized as WASM

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 9 Svelte WASM Projects

  1. webvm

    Virtual Machine for the Web

    Project mention: Running Python code in a sandbox with MicroPython and WASM | news.ycombinator.com | 2026-06-06

    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)

  2. AppSignal

    Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.

    AppSignal logo
  3. VERT

    The next-generation file converter. Open source, fully local* and free forever.

    Project mention: 11 useful websites | dev.to | 2025-11-25

    Vert

  4. ffmpeg-explorer

    Create and render complex ffmpeg filtergraphs in the browser.

  5. exiftool-web

    exiftool (OSINT image metadata utility) in the browser (via WebAssembly!)

  6. repeatit

    Go Template Playground

  7. excalichart

    Excalichart is an open source BI tool for finding insights in your data.

  8. p2p-git-portal-poc

    p2p git portal proof-of-concept using Svelte Golang/WASM (experimental)

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
  10. the_raytracer_challenge_repl

    A WebAssembly (WASM) based REPL interface for my Raytracer Challenge in Rust project

  11. local-converter

    LocalConvert runs the entire conversion inside your browser using WebAssembly — the same technology that powers browser-based games and desktop-class apps in the browser. What can it do? Supported output formats: MP4 · WebM · AVI · MOV · GIF · MP3 Works with most common video and audio inputs: MP4, MOV, MKV, AVI, WebM, and more. Extra features:

    Project mention: Show HN: LocalConvert –browser-based file converter using ffmpeg.wasm no uploads | news.ycombinator.com | 2026-03-09
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).

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Svelte WASM related posts

  • VERT.sh: The File Converter That Never Sees Your Files (Thanks, WebAssembly!)

    1 project | dev.to | 14 Oct 2025
  • Vert: The file converter you'll love

    1 project | news.ycombinator.com | 13 Oct 2025

Index

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

# Project Stars
1 webvm 17,412
2 VERT 15,663
3 ffmpeg-explorer 640
4 exiftool-web 157
5 repeatit 66
6 excalichart 43
7 p2p-git-portal-poc 34
8 the_raytracer_challenge_repl 19
9 local-converter 2

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