Measure distances on images/text/PDFs (pixels), with optional conversion to ms & bpm.
Content Upload
- PDF Files: Drag & drop or use Browse Files. Navigate multiple pages with arrow buttons.
- Images/Text: Drag & drop, paste, or browse files.
- Clear: Use "Clear Calipers" to reset measurements.
Caliper Controls
- Add: "Add Caliper" or "Add Rhythm Caliper" for multiple measurements
- Move/Resize: Drag center square to move, vertical lines to resize
- Keyboard: Tab to a caliper handle, then use arrow keys to adjust by 1 px or Shift + arrow to adjust by 10 px. Press Delete to remove that caliper.
- Remove: Right-click any part of a caliper
- Color: Choose a labeled color swatch to change all calipers
Reference & Units
- Add Reference: Click "Add Reference", set the ms value in the dropdown
- Units: With a reference — ms/bpm; without — pixels (px)
Note: All operations are performed locally in your browser. No content is uploaded. Download the offline version.