Since version 3.1, a multilingual version has been available, supporting Simplified and Traditional Chinese, Danish, Dutch, French, German, Hungarian, Italian, Norwegian, Polish, Portuguese, Russian, Spanish, and Swedish. Since then, new stable versions have been released regularly. The FastStone Image Viewer was first released in 2004 by FastStone Soft.

Slide show, including music and many transition effects.

Fully customizable contact sheet Builder*Emailing.

Advance image editing tools: clone brush, curve (tonality), levels, and unsharp mask.

Basic image editing tools: resizing, cropping, color correction, red-eye removal.

Displays Exchangeable image file format ( Exif) camera information.

Supports all major graphic formats ( BMP, JPEG, JPEG 2000, animated GIF, PNG, PCX, TIFF, WMF, ICO, and TGA), with a focus on popular digital camera RAW formats such as Canon's CR2 and CR3, and Sony's ARW.

If in fullscreen mode, pops up an image gallery, detailed image information, editing options, or program options at the border being touched by the mouse.

Preview of quality loss when saving in lossy file formats (such as JPEG).

Portable version to be used without installation, typically installed on USB flash drive, including all user settings.

Batch operations including rename and convert.

Custom order arranging, via drag-and-drop, and automatic renumbering.

Support for multi-monitor configuration.

Relatively fast HQ image thumbnail viewing, using Lanczos resampling algorithm.

The program also includes basic image editing tools. FastStone Image Viewer is an image viewer and organizer for Microsoft Windows, provided free of charge for personal and educational use, as of version 7.0.

Faststone photo resizer online