ImageTracerJS vs Vecto

ImageTracerJS is a JavaScript raster-image tracer that converts image data into SVG vector output. It can run in a browser by loading its JavaScript file and calling tracing functions, or in Node.js through a command-line interface. Its API returns SVG strings or tracedata for further processing. Browser-only asynchronous functions and synchronous ImageData functions are available for browsers and Node.js. Tracing can be configured through an options object or presets, including posterized, grayscale, detailed, and artistic variants. Controls cover line and spline error thresholds, path omission, corner enhancement, color sampling, palette size, layering, SVG rendering, and blur preprocessing. The command-line interface supports nearly all options, with pal and layercontainerid as exceptions. Node.js image loading requires an external library because Node.js lacks built-in canvas and DOM support. The project is also available as an Inkscape extension. ImageTracerJS is free under the Unlicense, which permits use, modification, and distribution for commercial or non-commercial purposes, with no warranty. The project notes that large images or many layers can trigger out-of-memory errors and that error handling is limited.

Vecto converts raster images such as logos, icons, illustrations, scans, and photos into editable SVG files. It accepts PNG, JPG, BMP, and GIF, preserves transparency, and provides a live side-by-side preview with synced zoom. Its tracer builds a connected mosaic, fitting shared boundaries once to avoid gaps or overlaps; it can represent straight edges as true lines and circles as exact arcs. Sub-pixel placement positions boundaries between pixels rather than snapping them to the pixel grid. Users can export SVGs or copy them to the clipboard for design and cutting software. Photo tracing can create stylized posterized vector art with a chosen number of colors. The maker says processing happens locally, images are not uploaded, and the app works offline without an account. Vecto is MIT-licensed and available free to download or build. The graphical application is Windows-only; Linux and macOS downloads are command-line tools for tracing, batch jobs, and benchmarking. A Microsoft Store version costs $7.99, paid once.