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ep-133-sample-tool-offline/README.md
Victor Giers a98a5985a7 initial commit
2026-07-12 11:02:46 +02:00

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EP Sample Tool — offline Mac launcher

This folder contains a local snapshot of Teenage Engineering's EP Sample Tool for personal offline use with an EP-133. The browser talks directly to the connected device over USB MIDI SysEx; sample data is not sent through an internet service.

Start it

Double-click EP Sample Tool Offline.app. The small wrapper stays open so the local server remains available; quit it from the Dock when you are finished.

For a visible launcher log, double-click Launch EP Sample Tool.command, or run:

npm start

Keep the launcher window open while using the tool. Chrome will ask for permission to use MIDI system-exclusive messages the first time. Connect and power on the EP-133 before approving that prompt.

The launcher binds only to 127.0.0.1 on a random port. It requires Google Chrome, Chromium, or Microsoft Edge because Safari/WKWebView does not currently expose the Web MIDI API used by the EP tool.

Included offline

  • The current EP Sample Tool JavaScript and CSS
  • Audio conversion/tagging WebAssembly modules
  • The EP-133 factory-content pack used by factory restore
  • The app font and images

The snapshot was taken from https://teenage.engineering/apps/ep-sample-tool/ on 2026-07-12. It is not an official Teenage Engineering desktop application and will not update itself.

Run npm run verify to check that all expected local assets are present.