Rotate an image online
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Photos taken in portrait sometimes save sideways, and scanned pages regularly come out rotated depending on how they were fed through the scanner. This tool rotates your image by a quarter, half, or three-quarter turn and — importantly — actually changes the pixels rather than just setting an orientation flag. That distinction matters: some tools only flip an EXIF orientation tag, which looks correct in one viewer and wrong in another. Here the canvas is genuinely re-drawn at the rotated dimensions, so a 4000x3000 landscape photo rotated 90 degrees becomes a true 3000x4000 portrait file that displays the same way everywhere. You get a live preview of the rotation before applying, and a before-and-after comparison afterwards.
Real rotation versus an orientation flag
Photos carry an EXIF orientation tag telling viewers which way up the image should display. Many tools 'rotate' by changing only that tag, which works in software that respects it and fails everywhere else — the classic symptom being a photo that looks correct on your phone but sideways after uploading. This tool redraws the actual pixels at the rotated dimensions, so the image is genuinely rotated in the file and displays the same way in every application.
Dimensions swap on quarter turns
Rotating by 90 or 270 degrees exchanges width and height: a 4000 by 3000 landscape photo becomes a 3000 by 4000 portrait. Rotating 180 degrees leaves dimensions unchanged. This is worth knowing when an upload has dimension requirements, because a photo that met a maximum width before rotation may exceed a maximum height afterwards.
Quarter turns are lossless in principle
Rotating by exact multiples of 90 degrees rearranges pixels without needing to interpolate between them, so no detail is invented or lost in the rotation itself. The only quality consideration is the normal re-encoding when the file is saved, which is why the tool saves at high quality. Arbitrary angles like 5 degrees would be different — those require resampling and do soften an image slightly.
Frequently asked questions
- Does this actually rotate the pixels or just set a flag?
- It genuinely re-draws the image at the rotated dimensions, so the result displays correctly in every viewer — unlike tools that only change an EXIF orientation tag.
- Do the image dimensions change?
- For 90 and 270 degrees, yes — width and height swap. For 180 degrees the dimensions stay the same.
- Does rotating lose quality?
- Rotating by exact quarter turns is lossless in terms of pixel data; the only change is the normal re-encoding when the file is saved.
- Is my image uploaded anywhere?
- No, rotation happens entirely in your browser using the Canvas API.
- My photo looks right on my phone but sideways when uploaded. Will this fix it?
- Yes. That symptom is an EXIF orientation tag being ignored by the receiving system. This tool rewrites the actual pixels, so the correct orientation travels with the file everywhere.
- Can I rotate by an arbitrary angle?
- No, only 90, 180, and 270 degrees. Those are lossless rearrangements; arbitrary angles require resampling and soften the image.