Straighten a Crooked Photo
A horizon that slopes by just a couple of degrees makes a whole photo feel off. Scans and phone photos of documents are often slightly crooked too.
- Never uploaded
- Instant, no sign-up
- Works offline
Drop images here
Files stay in your browser — nothing is uploaded.
About this tool
Rotate by any angle in 0.1° steps and the empty corners that rotation creates are cropped away automatically, so the result is a clean rectangle.
How it works
- 1
Add your photo (the sample is tilted on purpose).
- 2
Drag the angle until lines look level.
- 3
Download the straightened image.
Features
- Fine controlAny angle from −45° to 45° in tenths of a degree.
- Auto-cropThe largest clean rectangle is kept, so no blank corners.
- Or keep everythingTurn off cropping to keep the whole picture on a larger canvas.
- Private by designEverything runs on your device. No uploads, no account, no watermark, and EXIF/GPS data is stripped from the result.
Supported formats
Input: JPG, PNG, WebP, GIF (first frame), BMP, SVG, AVIF, plus TIFF/HEIC where your browser can decode them. Output: PNG, JPG or WebP.
Frequently asked questions
How do I know which angle to use?
Watch a line that should be level — a horizon, table edge or text line — and adjust until it's flat in the preview.
Why does the image get smaller?
Rotating creates empty corners; cropping them out trims the edges a little. Small angles lose very little.
Is this the same as rotating 90°?
No. Use Rotate Image for quarter turns; this is for small corrections.
Are my images uploaded to a server?
No. Files are decoded, processed and re-encoded by your browser using the canvas API and Web Workers. Nothing is sent to any server, and there is no account or storage. Closing the tab discards everything.
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