Does rotating a JPG by 90 degrees lose quality?

No, not at the default Very High quality and as long as the photo's width and height are both multiples of 8 (or 16 for chroma-subsampled JPGs) — which covers virtually every phone and camera JPG ever produced. In that case the rotation is performed by transposing already-encoded JPEG blocks, so the kept pixels are bit-identical. Custom-angle rotations (1.5 degrees, 45 degrees, etc.) require a full re-encode and have a tiny, generally invisible quality cost.

Why does my photo look upright on my phone but sideways when I email it?

Phone cameras save the raw sensor pixels in their native landscape orientation, then write an EXIF Orientation tag (1-8) telling viewers how to display them. Photos.app, Google Photos, and modern browsers honor that tag and rotate on display. Many email clients, older CMS uploaders, slide decks, Discord on certain platforms, and printer drivers ignore EXIF and show the raw landscape pixels — which makes a portrait shot look sideways. Rotating the actual pixels with this tool and rewriting EXIF Orientation to 1 (normal) makes the photo display correctly everywhere.

Will my EXIF metadata (date, location, camera model) survive the rotation?

Yes. The EXIF Orientation tag is updated to reflect the new rotation, but the rest of the metadata — capture timestamp, GPS coordinates, ISO / aperture / shutter, camera make and model, lens info — is copied across unchanged. If you'd rather strip EXIF entirely (privacy reasons), run the result through Compress JPG which has metadata-removal options.

Can I rotate a folder of JPGs all the same direction in one go?

Yes — drop in multiple files and pick a rotation angle once. Every file processes in parallel with the same setting. Useful for a batch of phone photos where the entire shoot was taken in landscape-with-the-phone-rotated, a folder of scanned receipts that all came out 90 degrees off, or a series of drone shots that all need the same horizon correction. Files download individually or as a single ZIP archive.

What's the difference between rotating and flipping?

Rotating turns the image around its center by a specified angle (90, 180, 270, or any custom value) — text inside the image stays oriented relative to the rotation. Flipping mirrors the image across an axis: a horizontal flip swaps left and right (text becomes mirror-readable / backwards), a vertical flip swaps top and bottom. A 180-degree rotation produces the same visual result as applying both a horizontal and vertical flip together, but is not the same as either flip alone. For mirroring, use Flip JPG.

Will custom-angle rotation leave white corners on my JPG?

Yes. JPEG doesn't support transparency, so the empty triangular corners created by a non-orthogonal rotation are filled with solid white by default. If you need transparent corners, convert the result to PNG with JPG to PNG and then rotate, or rotate first and crop the rotated result tightly to avoid the corners with Crop JPG.

Why is a 90-degree rotation faster than a 1.5-degree rotation?

Exact 90 / 180 / 270 rotations on block-aligned JPGs are lossless transpose operations: the JPEG decoder doesn't have to fully decompress and re-compress the image — it just rearranges already-encoded blocks and rewrites the headers. A custom angle (anything that isn't a multiple of 90) requires fully decoding the JPG to a pixel buffer, mathematically resampling every pixel into its rotated position, and re-encoding the entire image as a new JPG. On a 12-megapixel phone photo that's roughly 5-10x more CPU work.

Does this tool work on JFIF and JPEG-2000 files too?

JFIF (.jfif) is a container variant of standard JPEG and is fully supported — drop in.jfif files alongside.jpg /.jpeg with no conversion needed. JPEG-2000 (.jp2 /.j2k) is a different format with its own codec; for those, run JP2 to JPG first, then rotate.

Can I rotate just the portrait photos in a mixed folder?

Currently the rotation is applied uniformly to every uploaded file — there's no orientation-filter step. If you have a folder mixing portrait and landscape shots, sort them locally first (most file managers can sort by image orientation or aspect ratio) and run two separate batches. For single-file rotation with a visual preview, upload one file at a time.

Rotate JPG

Rotate JPG and JPEG images by 90, 180, or any custom angle online. Fix photo orientation instantly with no quality loss.

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