SVGO

SVGO is an open-source SVG optimizer for Node.js that reduces file size by removing unnecessary elements and attributes from SVG files while preserving appearance. It provides both a command-line interface and a programmatic API.

The optimizer uses a plugin-based architecture; each plugin implements a transformation, such as stripping XML declarations, removing comments, collapsing groups, optimizing path data, converting colors, and removing unused metadata. A common approach is to enable the default preset, which bundles a balanced set of optimizations; users can customize plugins by enabling, disabling, or configuring individual plugins.

SVGO can be integrated into build pipelines and tooling. It is used directly in command-line workflows via svgo input.svg, or through the Node API in JavaScript projects. It is often used with tools like Webpack, Gulp, or Grunt, and there are related plugins and loaders that integrate SVGO into those ecosystems.

The project is open source and released under an MIT-style license. The SVGO ecosystem also includes SVGOMG, an online interface that uses SVGO to provide a visual optimization experience.

Because of its plugin-based design, SVGO supports a wide range of optimizations and can be tuned for different needs, from maximal size reduction to preserving specific attributes or IDs. Its emphasis on configurability and extensibility has contributed to widespread adoption in web development workflows aiming to minimize SVG payloads without sacrificing visual fidelity.