What it does
FastStone Image Viewer combines image browsing, comparison, conversion and editing, including crop, red-eye correction and color adjustments.
Use the full-screen edge panels to reach thumbnails, EXIF and editing tools, or compare up to four images side by side while choosing a photograph. Crop, retouch or adjust colour, then use Save As to compare output quality and file size. The viewer has a portable version. HEIC viewing depends on Windows 10/11 WIC codecs, and readable formats do not all imply matching export support. Personal/educational use is free; the paid licence is a one-time lifetime purchase with free upgrades.
Strengths
- Full-screen access to thumbnails and EXIF information
- Image comparison and practical correction tools
Watch out for
- Free use is limited to personal and educational contexts
Best for
- Selecting and correcting a photo collection