What is FSViewer?

FastStone Image Viewer is an image browser, viewer, and converter. It supports adjustments, watermarks, EXIF support, lossless JPEG transitions, and drop shading histograms. It has a built-in slideshow with over 60+ transitional, including BMP, JPG, JPEG 2000, GIF, PNG, and TIFF.

The FastStone Image Viewer has a True Full Screen viewer with an image zoom support and fly-out menu panels. It has a customizable image magnifier. Image editing tools include resizing/resampling, rotating, cropping, sharpening, blurring, and adjusting lighting and colors/curves/levels. The user can choose from eleven re-sampling algorithms when resizing images. Image color effects include sepia, negative, and RGB adjustment. Image special effects include annotation, drop shadow, framing, sketching, lens, and oil painting. The FastStone Image Viewer also has a clone stamp and a healing brush. Images can be compared side-by-side, with up to 4 images at a time. It has a multi level undo/redo capability, and supports multiple program skins.

Download FSViewer from the developer

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Download FSViewer (external link)

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File types supported by FSViewer

Our users primarily use FSViewer to open these file types:

About file types supported by FSViewer

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about which types of files FSViewer can process, please do get in touch - we would love hearing from you.