People who are not happy with the in-built image viewing apps in Windows 10, often look for third-party image viewers. This is why there are so many alternatives available for Windows users such as IrfanView, FastStone or XNView. If you want a portable image viewer that is both fast and lightweight, then you can try using FreeVimager. It is a free image viewing application for Windows that also offers some basic editing and image format conversion features.
FreeVimager is available in both installable and portable formats. As soon as you launch the application, it offers to integrate itself with Windows. You can choose to associate the basic image formats like BMP, EMF, GIF, JPG, PCX, PNG, and TIF with FreeVimager. You can also make it auto-start with Windows, add it to the notification area and make it launch in single instance mode only.
After associating it with the image formats, you can just double-click on any image to open that image in FreeVimager. If you have a touch ready screen, you can use basic touch gestures to zoom in and zoom out or rotate the images. Among the editing features, you can rotate, crop, flip, and resize the images. You can change the contrast, brightness, make the image grayscale, turn it into negative, remove redeye, sharper or smoothen the image. You can even add borders to the image.
FreeVimager also offers batch processing of multiple images at the same time. This feature allows you to batch process and rename multiple files at the same. You can also batch convert the images and change their image formats to JPEG, TIF, GIF, BMP etc. In the batch processing, you can also reduce the large files to a smaller size.
All in all FreeVimager is a very fast and feature rich image viewer. It supports all the popular image formats and allows some basic editing.
You can download FreeVimager from https://www.contaware.com/freevimager.html.