# svgo > SVG Optimizer: a Nodejs-based tool for optimizing Scalable Vector Graphics files. > It applies a series of transformation rules (plugins), which can be toggled individually. - Optimize a file using the default plugins (overwrites the original file): `svgo {{test.svg}}` - Optimize a file and save the result to another file: `svgo {{test.svg}} {{test.min.svg}}` - Optimize all SVG files within a folder (overwrites the original files): `svgo -f {{path/to/folder/with/svg/files}}` - Optimize all SVG files within a folder and save the resulting files to another folder: `svgo -f {{path/to/input/folder}} -o {{path/to/output/folder}}` - Optimize SVG content passed from another command, and save the result to a file: `{{cat test.svg}} | svgo -i - -o {{test.min.svg}}` - Optimize a file and print out the result: `svgo {{test.svg}} -o -` - Optimize a file making sure a given plugin is enabled: `svgo --enable={{plugin_name}}` - Show available plugins: `svgo --show-plugins`