Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Affinity Publisher - Professional desktop publishing app
SVGO - Tool for optimizing SVG files
Contenta Publishing Suite - Contenta Publishing Suite is an advanced-level and web-based publishing software solution offered by RWS that allows you to create good quality content and offers you optimized steps and procedures to publish the content successfully.
Scour - SVG Optimizer / Cleaner
Xpublisher - Xpublisher is a content publishing software that helps you to structure your content and then allows you to easily publish the content on various platforms.