With the new era of social media and advanced phones with high-quality cameras, everyone with a pc needs a good photo viewer.
In this post, I am going to introduce a free, open-source and very light photo viewer and editor.

ImageGlass – A lightweight, versatile image viewer
This photo viewer has everything you need: Different size viewing, simplicity, and speed.
Unlike other windows photo viewers, it is absolutely free and no ads is showing in the application.
Supported formats Version 7.0.7.26
ImageGlass supports the most common image formats.
While Default formats group are including lightweight image formats and able to be loaded automatically, Optional formats group are not. This is to avoid heavy workloads and performance interruption of the app. Besides, user can easily customize this extension list.
Default formats
File extension | Read | Write | Comment |
---|---|---|---|
bmp | ✔ | ✔ | |
cur | ✔ | ||
cut | ✔ | ||
dib | ✔ | ||
emf | ✔ | ✔ | |
exif | ✔ | ✔ | |
gif | ✔ | ✔ | Support writing the first image frame. |
heic | ✔ | Non-animated format. | |
ico | ✔ | ✔ | The biggest image will be displayed. |
jfif | ✔ | ||
jpe | ✔ | ||
jpeg | ✔ | ||
jpg | ✔ | ✔ | |
pbm | ✔ | ||
pcx | ✔ | ||
pgm | ✔ | ||
png | ✔ | ✔ | |
ppm | ✔ | ||
svg | ✔ | – No scales. – Not support SVG files which use style sheets (ImageMagick limitation). | |
tif | ✔ | ||
tiff | ✔ | ✔ | Support reading/writing single page only. |
webp | ✔ | Support reading non-animated format only. | |
wmf | ✔ | ✔ | |
wpg | ✔ | ||
xbm | ✔ | ||
xpm | ✔ | ||
(base-64 string) | ✔ | ✔ | Read through the Clipboard Ctrl+V |