Portable FastStone Image Viewer

Portable FastStone Image Viewer: A friendly and resource-friendly image viewer, editor and converter

Portable FastStone Image Viewer is a functional and portable tool that lets you view, edit and convert photos using straightforward options.

The program is portable so you can run it directly since it doesn’t involve an installation process. Portable FastStone Image Viewer has a plain UI split into three sections – a preview pane, the file browser and a thumbnail area.

By default, any opened image is shown in fullscreen mode, allowing you to use several options such as navigating through your photo collection via the thumbnail browser, using essential editing tools, tagging files and creating a custom favorites list.

On top of that you can use Portable FastStone Image Viewer to convert multiple photos simultaneously thanks to support for batch operations, as well as merge or split files that have multiple pages.