FastStone Image Viewer

From Wikipedia, the free encyclopedia
Jump to: navigation, search
FastStone Image Viewer
Developer(s) FastStone Soft
Stable release 5.5 / August 14, 2015; 5 months ago (2015-08-14)
Written in Embarcadero Delphi
Operating system Windows 98/Me/NT/2000/2003 Server/XP/Vista/7/8
Available in English, multilingual available
Type Image viewer
License Proprietary, free for non-commercial use

FastStone Image Viewer is an image viewer and organizer for Microsoft Windows, provided free of charge for personal and educational use, as of version 5.5.



  • Relatively fast HQ image/thumbnail viewing, using Lanczos resampling algorithm
  • Support for dual head configuration
  • Custom order arranging, via DnD, and automatic renumbering
  • Color space management (partial, it ignores the monitor profile)
  • Magnifier lens
  • Portable version to be used without installation, typically installed on USB flash drive, including all user settings.

Other features include:


The FastStone Image Viewer was first released in 2004 by FastStone Soft. Since then, a new stable version of the program has been released every few weeks to few months.

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 and Spanish.

This Windows program is provided in three forms: as a normal-install executable, a zip file of the same, or as a fully portable no-install zip file.

According to FastStone, version 2.7 and all previous releases have been found to be using improperly licensed images and icons, and as a result, FastStone requested that version 2.7 and older copies of FastStone Image Viewer cease to be used, with all licenses updated to version 2.8 for both free and commercial versions. This announcement was made on their web site the same date that version 2.8 was posted.


  • As of version 4.2, resizing of animations (i.e. animated GIFs) is not supported. Thus they can only be viewed at 100% scale, this includes thumbnails.
  • When the program starts, a delay may occur as the thumbnail view is managed, more so the first time when the thumbnail cache database is built.

See also[edit]


External links[edit]