SVGO
SVG Optimizer (https://github.com/svg/svgo) is a Node.js utility for optimizing SVG files. SVG files, especially those generated by editors, can have a lot of cruft associated with them. SVGO can clean up the metadata, comments, hidden elements, and so on, without changing the rendering of the SVG element itself.
To install it, assuming you have Node.js installed, run the following on the command line:
$ npm install -g svgo
Usage is as simple as this:
svgo svgo.svg
Running that on a small file generated by Inkscape, reduces the file size by over 50 percent:
The difference is apparent if you look at the change in the svgo.svg source code, before and after optimization.
The following screenshot shows the metadata added by Inkscape during the authoring process:
This screenshot shows the cleaned-up file after optimization:
It's a great tool, with many configuration options (https://github.com/svg/svgo#usage) and integrations with other tools (https://github.com/svg/svgo#other-ways-to-use-svgo)...
