Convert Color Images to SVG Online

VTracer is a Rust tracing engine developed by VisionCortex. Unlike Potrace, which only handles black-and-white, VTracer splits an image into multiple color layers, traces each layer into its own SVG path, and merges them. The result is a full-color vector that respects the gradients and palette of the original.

After tracing we run SVGO multipass to strip junk metadata, round coordinates, and merge duplicate paths — usually a 40-60% reduction. The final SVG is compact, ready for web use, and scales to a 10m poster without pixelation.

VTracer is a Rust tracing engine by VisionCortex. The pipeline has three stages: quantization → clustering → bezier fitting. Quantization reduces the 16.7M-color RGB space to a few dozen representative 'clusters', controlled by color_precision (default 6 bits ≈ 64 colors).

Clustering groups neighbouring pixels of the same cluster into 'regions'. Filter speckle drops regions under N pixels² (default 4). Gradient step (VTracer 0.6+, flag --gradient_step — replaces the old layer_difference) governs how the tracer blends between similar colors.

The final stage is bezier fitting: each region boundary is fit to cubic Bezier curves with tolerance path_precision. Spline mode (default) produces smooth curves; polygon mode yields straight polygons — lighter but angular. SVGO multipass then strips metadata, rounds coordinates, and merges duplicate paths — usually 40-60% smaller than the raw trace.