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MIDI keyboard guides compare key counts. None tell you to check for ghost notes before buying. Our tester uses the Web MIDI API: connect the keyboard, press every key, spot dead contacts and double-triggers in your browser. No install. No upload. capytoolkit.com/tools/hardwa... #musicproduction

capytoolkit.comWeb MIDI Keyboard Latency Tester | CapyToolkitDiagnose dead MIDI keys, ghost notes, and USB input latency instantly. Test your music hardware client-side with no DAW, installs, or data uploads needed.

19/6/26, 12:41 pm0 reposts3 likes

GhostConvert

@ghostconvert.cc

20 June

The 'upload then process then delete' model most converters use is a trust exercise. Their ToS often says 'we may use uploaded data for quality improvement.' Browser-side WASM processing means the file never leaves. No trust needed — it's mathematically impossible for the server to access it.

CapyToolkit

@capytoolkit.com

20 June

I agree. On my website it's not a case. First, there is no backend except 2 other tools that use custom Cloudflare workers on my personal account. It's rarher obvious which tools use them and I'm transparent about it. Second, you can always confirm in the network tab that nothing is sent "outside".