Edit and convert images
Image Tools has four tabs: Compress, Resize, Crop and Convert. Each tab takes one image or a batch. Every tab works the same way: add files, set the options, select the button, and find the results in the Results list below.
The tools read JPG, PNG, WEBP, BMP, GIF and TIFF images.
Compress
Makes images smaller by saving them again at a lower quality, and optionally scaling them down.
Open Image Tools. The Compress tab is open.
Add images: drop them on the box or click it to choose files.
Set Quality (30 to 100, default 80). Lower means smaller files.
Optionally choose Longest side: Original, 1920 px, 1280 px or 1080 px. Larger images are scaled down so their longest side fits; smaller ones stay as they are.
Select Compress image (or Compress 3 images for a batch).
Results keep their format and get _compressed added to the name. Each row shows the size before and after.
PNG is lossless, so Quality has no effect on a PNG: only Longest side makes it smaller. To shrink a PNG photo a lot, convert it to JPG or WEBP.
Resize
Changes the pixel size while keeping the image's shape.
Open the Resize tab and add images.
Type a Width (px), a Height (px), or both.
With one value, the other follows the image's proportions. With both, the image is made as large as fits inside that box, still keeping its proportions.
Leave Allow upscaling off unless you want small images enlarged. When it is off, images smaller than the target keep their size.
Select Resize image.
Results get _resized added to the name. If you leave both boxes empty, the app asks you to Enter a width and/or a height.
Crop
Cuts images to an aspect ratio, keeping the centre.
Open the Crop tab and add images.
Choose a ratio: Square 1:1, Portrait 4:5, Story 9:16, Landscape 16:9, Classic 4:3 or Photo 3:2.
Select Crop image.
The crop is as large as possible and centred; the parts outside it are removed equally from both sides. Results get _cropped added to the name.
To crop and resize to a platform's exact size in one step, use Social media presets instead.
Convert
Saves images in another format.
Open the Convert tab and add images.
Under Output format, choose JPG, PNG or WEBP.
For JPG and WEBP, set Quality (30 to 100, default 90).
Select Convert image.
The result keeps the original name with the new extension: logo.png becomes logo.jpg. Transparent areas turn white in a JPG, because JPG cannot store transparency.
Good to know
On Linux and Windows, saving as WEBP uses FFmpeg. Without FFmpeg, WEBP results fail; JPG and PNG still work.
BMP, GIF and TIFF images
Compress, Resize and Crop save the result in the same format as the original, and they can only write JPG, PNG and WEBP. A BMP, GIF or TIFF image therefore fails with an error that says Unsupported output format. Convert it to JPG or PNG first, then use the other tabs.