MIDI Viewer
Read MIDI signals from your connected input device/keyboard in real-time.
Signal Log
| Time | Type | Data 1 | Data 2 |
|---|
How does this tool work?
This tool allows you to visualize incoming MIDI signals from your connected devices directly in the browser.
Connect a MIDI keyboard or controller to your computer. Once the browser detects the device, all transmitted commands (such as note presses, control changes, or pitch bend) will be listed in the log with timestamps and precise data values. You can clear the log at any time to keep things organized.
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.