map-compare

Draw or import outlines on the left. Compare the whole group at true scale on the right.

IMPORT AN OPENSTREETMAP OUTLINE Search happens only when you press Search. Choose a result, then press Outline.
ADD A GEOMETRIC SHAPE Generated shapes are centered on the current left-map viewport and kept as one grouped outline.
LEFT MAP — OUTLINES
RIGHT MAP

The anchor is the first point of the first outline.

BOTH MAPS
Reference mapChoose a hand-drawn outline above, then click to add points.
Comparison mapClick or drag the anchor to move every outline.