Compress Image

A form or an email rejects a photo because the file is heavy. Compress Image re-encodes one picture at a fixed quality.

Quality is 80, and the format may change

There is no slider. The job uses quality 80. If the upload is a PNG, the download is a PNG with that quality setting and the highest PNG compression level. Anything else, including JPEG, WEBP, and GIF, is written as a JPEG at quality 80. A WEBP you hoped would stay WEBP will not. JPG to WEBP is the browser tool when you want WEBP. The upload cap is 25 MB and the job takes one file. /blog/how-to-reduce-image-size-in-kb explains why shrinking pixels often beats another quality pass.

Smaller is not guaranteed

A JPEG that was already saved near quality 80 can come back a similar size, or occasionally larger, because it is decoded and encoded again. A PNG of a photo may shrink, or it may stay large because PNG is a poor photo container. Screenshots with flat color and text usually belong in PNG. Photos usually belong in JPEG. This job does not resize. Resize Image fits the long edge inside 800 pixels, which is the step that actually cuts a 12-megapixel phone shot down. Image Crop removes pixels you do not need.

When quality 80 is the wrong pass

Text in a screenshot can look soft after a JPEG encode. If the file is a PNG of a UI, think twice before you accept a JPEG. There is no target file size, such as “under 200 KB.” You download whatever quality 80 produced and check it. Strip Image EXIF removes camera metadata, which this job does not promise to strip. Image Upscale enlarges. It is the opposite of a shrink. Open the download and look at small text before you delete the original. If the letters look soft, keep the file you started with.