VisualRuler

What it does

VisualRuler turns any photo into a precision measuring tool. Just place a credit card in the shot and measure anything — instantly, accurately, for free.

Drop a credit card in the frame. VisualRuler uses it as a reference to deliver accurate real-world measurements — no depth sensor, no LiDAR, no fuss. No calibration, no setup, no account. Just you, your phone, and any card from your wallet. Place any standard ID-1 card (credit card, transit card, library card) in the scene and snap a photo — or pick one from your library. VisualRuler automatically finds the card and locks the frame. Drag the corner handles to fine-tune if needed. Place line or rectangle targets anywhere in the image. Distances update in real time as you drag — in metric or imperial. Card detection, frame lock, and measurement placement all happen in seconds. No spinners, no…from visualrulerapp.com

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