Boxy SVG

Boxy SVG edits SVG instead of converting it. The file you save is the file you opened: readable markup that a browser, a build step and a teammate's diff all understand, with a panel for editing the XML directly when a path has to be exactly right. For icons, logos, diagrams and anything headed into a web project, that matters more than the length of the feature list.

Buy it from the Mac App Store. The 19.99 dollar listing is paid up front with no in-app purchases, and it is the only one-time licence here we could actually verify. The same developer sells a browser-based version through his own site, and independent software directories describe that as an annual plan starting near 10 dollars a year. We could not read his pricing page to confirm it, so check carefully before paying there, and do not assume the two purchases are the same thing.

The app wraps a web-based editor, which shows: it does not feel entirely native, and it gets sluggish on very large documents. No print or CMYK workflow, no multi-page layout. If you need those, look elsewhere. If you mostly produce small, precise vector files destined for the web, twenty dollars is close to nothing against how often you will open it.