asantool

Rotate an image

Turn a sideways photo the right way up, or straighten one that sits a few degrees off. Quarter turns are lossless — the pixels only move — and the rotation is written into the file itself, so it looks right in every app.

Drop an image here to crop or rotate it

JPG · PNG · WebP · GIF · BMPUp to 50 MB · Your files never leave your device
How it works

4 steps, no waiting.

  1. 01Add your imageDrag a file onto the page or pick one from your device.
  2. 02Crop, rotate or straightenDrag the selection to crop, lock it to a ratio, turn the picture in quarter steps, or nudge it a degree at a time to straighten a crooked scan.
  3. 03Adjust the light if you need toExposure, brightness, contrast and saturation are there for when a photo came out flat or dark.
  4. 04DownloadChanges are written into the file itself, so it looks the same everywhere you open it.
Questions

Common questions

Why does my photo look sideways in some apps but not others?

Cameras often store a photo in its raw sensor orientation and add an EXIF flag saying how to turn it. Apps that read the flag show it correctly; apps that ignore it show it sideways. Rotating here re-writes the actual pixels, so every app agrees.

Does rotating lose quality?

A quarter turn is lossless in terms of pixels — they are simply moved. Rotating by an arbitrary angle has to resample the image, which softens it very slightly, and JPGs are re-encoded when saved.

How do I straighten a crooked photo?

Use the straighten slider rather than the quarter-turn buttons. It rotates by fractions of a degree and scales the picture just enough to avoid leaving empty corners, which is why straightening always crops in a little.

Is my image uploaded anywhere?

No. The work happens in your browser using image APIs it already ships with, so the file never leaves your device. There is no upload to wait for and nothing stored on a server afterwards.