Live Music Coder

What it does

Live coding meets music production — entirely in your browser. Write JavaScript, hear music instantly. Choose from 4 audio engines (Strudel pattern live coding, Tone.js synths, raw Web Audio, full MIDI I/O), 7 real-time visualizers, and 51 AI-composed starter sessions across 15 genres. For musicians who code, coders who make music, and educators teaching creative programming. → Free at live-music-coder.pro · Open source (AGPL-3.0 / MIT)

Browser-based live coding music IDE. Write code, hear music instantly. 4 audio engines, visual node graph, real-time visualizers, and instant code sharing. Free, no install.

• AL
  A list of programmers coding live2018 · shipstreams.com · ▲202
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  Collaborative live-coding MIDI sequencers in JavaScript2023 · editor.sequencer.party · ▲11

  Welcome to Sequencer Party! This session demonstrates our javascript live-coding plugin. The first sequencer just generates random notes, while the second sequencer lets the user build a little arpeggiated riff. The "Mute" buttons let you try sequencer 1 or 2. Press "Code" to see or edit the underly

• VC
  Voice Composer – Browser-based pitch detection to MIDI/strudel/tidalJan 2026 · dioptre.github.io · ▲32

  Built this over the weekend to bridge the gap between "can hum a melody" and "can code algorithmic music patterns" (Strudel/TidalCycles) for live coding and live dj'ing. What it does: Real-time pitch detection in browser using multiple algorithms: CREPE (deep learning model via TensorFlow.js) YIN (autocorrelation-based fundamental frequency estimation) FFT with harmonic product spectrum AMDF (average magnitude difference function) Outputs: visual piano roll, MIDI files, Strudel/TidalCycles code All client-side, nothing leaves your machine Why multiple algorithms: Different pitch…

• AW
  A Web Audio live-looper using microphone and MIDI input2015 · codecur.io · ▲18
• IF
  Improved freemusicdemixer – AI music demixing in the browser2023 · freemusicdemixer.com · ▲160

  Hi HN, Last time I showed free-music-demixer, which people seemed to enjoy. It was a static website with a Javascript + WASM module to perform music demixing (or music source separation) using an AI model UMX-L (Open-Unmix) running client-side in the browser. Since then, I have overhauled the project and made several improvements: - The demixing/separation quality is higher now, since I implemented the missing post-processing step - Memory usage is lower now by performing a custom segmented inference with a streaming LSTM, which should allow larger tracks (or, dare I say,…

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  A Simple Online Step Sequencer2022 · muted.io · ▲60

  Make simple 4-bar music loops in your browser using this simple online sequencer. A quick way to express your musical ideas and export them as MIDI.

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  /dev/null▲491

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

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  Run full iOS 16.5 firmware on Android Devices▲464

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 22h ago · github.com

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

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  Dev tools · 29d ago · github.com

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  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  Dev tools · 24d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

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  Brew ▲900

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  AI · May 2026 · brew.new

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  Kilo Code for VS Code▲896

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  Dev tools · May 2026 · kilo.ai

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  AI · May 2026 · pollyreach.ai

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  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

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  Files.md – Open-source alternative to Obsidian▲730

  🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md

  Dev tools · May 2026 · github.com