MeasureFrame

MeasureFrame turns any photo into a calibrated measurement workspace — fully offline, private, and built for real projects.

Import a photo or capture one with the camera, set a known reference length, then add lengths, angles and area polygons that stay locked to the image.

• Calibrate once with two reference points and a known real-world length
• Measure lengths, angles, perimeters and approximate areas
• Keep annotations in normalized coordinates across rotation and resize
• Customize labels, colors and stroke widths
• Undo/redo in-session plus persistent version history
• Export full-resolution annotated PNG or printable PDF
• Local project library with search, sort, duplicate, Trash and restore
• Versioned JSON backup with Replace or Merge import
• Light/dark theme and optional dynamic color

No account, no ads, no analytics and no INTERNET permission. Photos and measurements stay on your device. Camera access is requested only when you open the camera.

Accuracy depends on calibration, perspective, lens distortion and careful point placement — MeasureFrame is a practical measurement aid, not a metrology instrument.