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Life & fun · March 28, 2020

I built a web-ready synthesizer using WebAssembly and C++

I built a web-ready synthesizer using WebAssembly and C++ launched on March 28, 2020 with 6 votes, #1,370 of 4,417 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 6 years on.

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  • WebAssembly2015 · github.com · ▲86

    New binary format for compiling applications for the web

  • IB
    I built a WebMIDI sequencer to control my hardware synthsDec 2025 · simplychris.ai · ▲43

    Hey HN, I’m an ex-Google engineer trying to get back into music production. I needed a way to sequence my hardware synths using AI contexts without constantly switching windows, so I built this. It runs entirely in the browser using WebMIDI. No login required. It connects to your local MIDI devices (if you're on Chrome/Edge) and lets you generate patterns. Tech stack: [React / WebMIDI API / etc]. Link: www.simplychris.ai/droplets Code is a bit messy, but it works. Feedback welcome.

  • Wrote a tiny WebAssembly (wat2wasm) compiler in Go2022 · github.com · ▲75

    As a personal project I wrote a really tiny Wat 2 Wasm compiler in Go. Mainly for demonstrative and educational purposes. It was tough: I didn't know anything about WebAssembly internals and I'm a newbie with Go... so I tried to document it as much as I could for anyone that would like to approach the quest in the future! It misses a lot of features (that will be gradually implemented). Any feedback is welcomed!! Demo: https://luna-demo.vercel.app

  • IB
    I Built a Synthesizer with WASM2020 · timdaub.github.io · ▲25
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    I built an online programming language2023 · lineone.dev · ▲8
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    An x86 assembly game from 2002, ported to WebAssembly with Claude CodeFeb 2026 · particlefield.com · ▲6

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