Select the folder that you want to optimize.

Folder optimization options:

Lossy (recommended)

Lossy compression: lossy has a better compression rate than lossless compression.
The resulting image is identical with the original to the human eye. You can run a test for free here.


Glossy compression: glossy has a better compression rate than lossless compression but less than lossy.
The resulting image is identical with the original to the human eye even in large resolutions. Ideal for photographers.


Lossless compression: the shrunk image will be identical with the original and smaller in size.
In some rare cases you will need to use this type of compression. Some technical drawings or images from vector graphics are possible situations.

Adjust your images for computer and mobile screen display.

Images for the web only need RGB format and converting them from CMYK to RGB makes them smaller.

Remove the EXIF tag of the image (recommended).

EXIF is a set of various pieces of information that are automatically embedded into the image upon creation. This can include GPS position, camera manufacturer, date and time, etc. Unless you really need that data to be preserved, we recommend removing it as it can lead to better compression rates.

to maximum pixels wide × pixels high (original aspect ratio is preserved and image is not cropped)

Recommended for large photos, like the ones taken with your phone. Saved space can go up to 80% or more after resizing.

Create also WebP versions of the images for free.

WebP images can be up to three times smaller than PNGs and 25% smaller than JPGs. Choosing this option does not use up additional credits.

Input a list of folder names that you want to exclude from the optimization, coma separated, without quotes or other delimiters. For example, mybackups,deleted-images,old .

Save a backup copy of the images in this folder. You can choose the same folder, in this case a subfolder named ShortPixelBackups will automatically be created inside it, for the saved backups, and this folder will be ignored when optimizing.

Select the images folder

How does it work?

The images are sent to our servers for optimization, retrieved when they are ready and they replace the original version. While the folder is optimized, you need to keep this page open. A progress bar will be displayed and the optimized images will be shown in a compare pane below. For each folder, a .shortpixel file will be created, storing optimization metadata. You need to make sure that the folder has proper rights for the file creation/modification.

What if I close the page?

The optimization process for that folder will stop. But, if you reload the same page, or start the process over for that folder, the optimization process will continue where it left. The already optimized images will not be processed.

Where can I find more info?

You can login to your ShortPixel account and check your usage statistics as well as a detailed optimization report. The default settings of the web optimizer are set to Lossy compression, remove EXIF, CMYK to RGB conversion, no WebP generation. You can find more about these settings on our blog.

Select the images folder
Detected base URL:

Using a base URL instead of uploading files via POST significantly speeds up the optimization process as the files are downloaded in parallel by our servers instead of being uploaded via a multi-part POST message.

Press Ignore if this is a local site (not accessible from Internet) or if the access is restricted in any manner.