Change how big an image is, what format it is in, or how much space it takes.
Resize
Make images a different size. Shape is always kept, so nothing is stretched. Add as many files as you like — several come back in a ZIP.
Change format
Turn images into JPEG, PNG or WebP. WebP is usually the smallest; PNG keeps transparency; JPEG opens anywhere.
JPEG cannot store see-through areas. Converting a transparent PNG to JPEG fills them in.
Make smaller
Squeeze images down to a size you name — for an upload limit, an email, or a form that keeps refusing your photo. Quality is chosen automatically to land just under the target.
Trim an image down to the part you want, or turn it the right way up.
Crop
Drag a box over the part you want to keep. Drag inside it to move it, or grab a corner to resize.
Rotate & flip
Turn images a quarter turn at a time, or mirror them. Applies to every file you add.
Turning a JPEG normally re-compresses it, losing a little quality every time. Lossless mode instead flips the tag the photo already carries saying which way up it goes — the picture data is not touched at all. Almost everything honours that tag; a few older programs do not, so switch it off if a turned photo shows up the wrong way somewhere.
See what a photo says about you, and take it out — in the file, and in the picture.
What's in this photo?
Photos carry hidden notes: where they were taken, when, and on what. Drop one in to see exactly what it is telling people, then take it out. The picture itself is copied across untouched — no re-compressing, no quality loss.
Works on JPEG, PNG and WebP. Keeping "which way up" leaves a single orientation tag behind — without it, photos taken in portrait come out sideways.
Redact
Cover up parts of an image — an address, a face, an account number. Drag a box over anything you want gone. The cover is burned into the picture, so what was underneath is not in the file any more.
The saved copy is a fresh image: the covered pixels are gone, and the hidden data (location, camera, timestamp) goes with them. The original file on your disk is not changed.