GreatTrace

1. Pick a drawing. Take a photo of a sketch on paper, or choose one from your library. Even, bright lighting and good contrast give the best trace.
2. It cleans up. Great Trace evens out the paper lighting, separates the ink from the background, and clears away speckle and grain.
3. It vectorizes. The cleaned drawing is traced into smooth vector paths — an SVG that stays crisp at any size.
4. Tune it. Threshold controls how much ink is captured, Smoothing how flowing the curves are, and Despeckle removes stray dots. Flip Invert for light lines on a dark background, and set the Line color.
5. Pick a style. Outline traces around the ink, keeping the drawing's varying line weight. Centerline runs a single, uniform-thickness stroke down the middle of each line — cleaner, lighter SVGs — with a Stroke weight control to set the thickness.
6. Export. Download the SVG (or a transparent PNG), or copy the SVG to paste elsewhere.

Source photos are never uploaded. If you sign in to sync, Great Trace stores only your saved vector SVGs so you can reopen them on another device.