Observed arrival · 2026-09-13
My Online Protractor
A browser-based angle-measuring workspace with semicircular and full-circle protractors, image upload, camera capture, angle construction, and export tools.
Field notes
The workspace supports both a traditional 180° semicircle and a 360° circular protractor, with selectable measurements in degrees or radians. Users can load four named sample diagrams, including a roof-truss framework and a mechanical CAD bracket, then adjust snapping, opacity, rotation, and magnification. Export options include standard and 4K PNG, a PDF report, and CSV measurements. The page states that image processing is client-side, while accuracy claims remain unverified by the supplied evidence.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue