RACK-02 - Modular techno machine in one HTML file with verifiable renders

Show HN: A techno machine in one HTML file, with verifiable renders

RACK-02 is a complete modular techno machine packed into a single HTML file. It offers a hands-on performance interface with modules for kick, bassline, hats, claps, percussion, toms, stabs, drones, and air, all controllable via knobs, scenes, and a patchbay for modulation. Unique features include offline sample-exact bouncing, stem export, automation lanes, and a live input for vocals. With verifiable renders and a focus on creative workflow, RACK-02 is perfect for live jamming and studio production alike.

Bouncing runs offline, so a heavy patch never drops samples in the exported file even if it stutters live.
  1. Kuyawa

    I love beautiful software and this is it

    Edit: I just downloaded the html file and it still works locally as a single page app, no external libs, no fonts, icons, nothing that could break the correct functioning of the app. This is how software should be built, portable, no installation required, drop anywhere and run

    Kudos on everything perfectly executed

  2. herpdyderp

    What is this built on? How can I use it? What're the licensing? I'm eagerly looking for open source and non-copy-left licensed web audio players for projects.

  3. caidan

    I know the renders are verifiable, but are the splines reticulated?

  4. jsherer

    Love this. I want this to go up to 174 bpm for some DnB experiments.

  5. jose-reyes

    Nice!!! A bit hard to understand if you haven't used anything related before, but interesting enough to make you wanted to try it when you haven't used anything related before ahaha

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2026-08-24