sortAttrs

Sorts attributes in all elements in the document. This does not reduce the size of the SVG, but improves readability and may improve how compression algorithms perform on it.

Here is a demonstration of SVGs that have been gzipped by NGINX using the default compression level of 1.

SVG	Unsorted ¹	Sorted ²	Reduced (%)
Arch Linux Logo	2.61 kB	2.61 kB	0 kB (0%)
Blobs	13.89 kB	13.88 kB	0.01 kB (0.1%)
Isometric Madness	123.87 kB	120.09 kB	3.78 kB (3.1%)
tldr-pages Banner	791 B	786 B	5 B (0.6%)
Wikipedia Logo	53.96 kB	53.87 kB	0.09 kB (0.2%)

¹ Uses the default plugins preset excluding sortAttr and sortDefsChildren. ² Uses the default plugins preset as-is.