Thio's SVG Thumbnail Extension is described as 'A native hardware-accelerated Windows SVG thumbnail handler for File Explorer that uses only the Windows API, written in Rust' and is an app. There are more than 10 alternatives to Thio's SVG Thumbnail Extension for a variety of platforms, including Windows, File Explorer, F-Droid, Android and PortableApps.com apps. The best Thio's SVG Thumbnail Extension alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try IrfanView or Microsoft PowerToys. Other great apps like Thio's SVG Thumbnail Extension are Universal Viewer, Smart SVG Viewer, SVG Explorer Extension and NX Studio.