FastStone Image Viewer is a fast and user-friendly image browser, converter, and editor. It has a nice array of features that include image viewing, management, comparison, red-eye removal, emailing, resizing, cropping and color adjustments. Its intuitive full-screen mode provides quick access to EXIF information, thumbnail browser and major functionalities via hidden toolbars that pop up when your mouse touch the four edges of the screen.

Other features include a high quality magnifier and a musical slideshow with 150+ transitional effects, as well as lossless JPEG transitions, drop shadow effects, image frames, scanner support, histogram and much more.

FastStone supports all major graphic formats (BMP, JPEG, JPEG 2000, animated GIF, PNG, PCX, TIFF, WMF, ICO and TGA) and popular digital camera RAW formats (CRW, CR2, NEF, PEF, RAF, MRW, ORF and DNG).

Why does FastStone seem so fast compared to Lightroom when previewing and flagging images?

Because it reads and displays the embedded high-resolution JPEGs inside RAW files directly, FastStone lets you review and flag images at lightning speed, often much faster than Lightroom Classic.

Can I control the image order when browsing in full-screen mode?

Yes. FastStone sometimes displays images in a seemingly random sequence when entering full-screen. To adjust the viewing order, exit full-screen (using the Enter key), then use the dropdown menu in the main interface to sort images as desired.

Is FastStone effective for culling large batches of photos quickly?

Absolutely. Many users use it to quickly sort through thousands of images – for instance, motorsports event photos – thanks to its speedy navigation and simplicity.

Features

  • Image browser and viewer with a familiar Windows Explorer-like user interface
  • Support of many popular image formats
  • True Full Screen viewer with image zoom support and unique fly-out menu panels
  • Crystal-clear and customizable one-click image magnifier
  • Superior Red-Eye effect removal/reduction with completely natural looking end result
  • Image modification tools: Resize/resample, rotate/flip, crop, sharpen/blur, brightness/contrast, etc.
  • Eleven (yes, 11) resampling algorithms to choose from when resizing images
  • Image color effects: gray scale, sepia, negative, Red/Green/Blue adjustment
  • Image special effects: watermark, annotation, drop shadow, framing, bump map, lens, morph, waves
  • Multi-level Undo/Redo capability
  • One-touch best fit/actual size image display support
  • Image management, including tagging capability, with drag-and-drop and Copy To/Move To Folder support
  • Histogram display with color counter feature
  • Compare images side-by-side (up to 4 at a time) to easily cull those forgettable shots
  • Image EXIF metadata support plus comment editing for JPEGs
  • Supports dual-monitor configurations

What's New

  • Improved Open and Save dialogs with a modern style
  • Displays current file position and total files in menu toolbar
  • With "Select files manually" option in "Import Photos and Videos", you can choose to display either filename or date time beneath the thumbnails
  • Provides native read/write support for WEBP images
  • Faster HEIC/HEIF thumbnail generation
  • Enhanced video thumbnail generation
  • When batch-renaming HEIC/HEIF images by date/time, EXIF "date taken" is used when available
  • Fixed a bug where files couldn't be dropped into folders that are symbolic links
  • Other improvements and bug fixes