SVG Optimizer is a Nodejs-based tool for optimizing Scalable Vector Graphics files. It applies a series of transformation rules (plugins), which can be toggled individually.

# To optimize a file using the default plugins (overwrites the original file):
svgo test.svg

# To optimize a file and save the result to another file:
svgo test.svg test.min.svg

# To optimize all SVG files within a folder (overwrites the original files):
svgo -f path/to/folder/with/svg/files

# To 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

# To optimize SVG content passed from another command, and save the result to a file:
cat test.svg | svgo -i - -o test.min.svg

# To optimize a file and print out the result:
svgo test.svg -o -

# To optimize a file making sure a given plugin is enabled:
svgo --enable=plugin_name

# To show available plugins:
svgo --show-plugins