ImageTracerJS vs Vectorizer

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.

Vectorizer is a web service that turns raster images into scalable SVG vector files. It accepts up to 20 images in one upload, then provides individual downloads through thumbnails or a ZIP archive. No account or software installation is required, and the service works through the internet, including on mobile phones. Conversion usually takes a few seconds, depending on image size and complexity. The site describes uses in visual design, advertising products, plotters, machine tools, and computer-aided design, with applications for artists working from sketches and engineers handling drawings, plans, or technical documents. Uploaded data and generated files remain for no more than one hour before permanent deletion. Personal and commercial use is permitted, but integrating the service into applications is prohibited. Vectorizer may analyze request metadata to improve the service. The free plan costs nothing.