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Rotate & Flip Image

Rotate images by any angle and flip horizontally or vertically. Fix sideways photos instantly. Free, private, and 100% browser-based.

ここに画像をドロップ、またはクリックして選択

JPG、PNG、WebP、AVIF、BMP、GIF に対応。最大 20MB。

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任意角度に対応

90°、180° はもちろん、細かな角度指定もできます。

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反転もワンクリック

左右・上下反転をまとめて使えます。

すぐにプレビューできる

回転結果をすぐ確認してからダウンロードできます。

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完全ローカル処理

画像は外部サーバーに送られません。

Rotate and Flip Images in One Tool

Our free image rotator combines rotation and flipping into a single, fast tool. Whether you need to fix a sideways photo, flip an image for a mirror effect, or rotate to a precise custom angle, everything happens instantly in your browser with zero server uploads.

Rotate image operations support 90°, 180°, 270°, and any custom angle from -180° to +180°. Flip image operations mirror your image horizontally (left-right swap) or vertically (top-bottom swap). You can combine both in a single operation.

How to Rotate an Image Online

1

Upload

Drop your image or click to browse

2

Rotate / Flip

Use quick buttons or custom angle

3

Download

Get your rotated image instantly

Why Are My Photos Sideways? EXIF Orientation Explained

If you've ever taken a photo on your phone and found it appearing sideways or upside down on your computer, the cause is almost always EXIF orientation metadata. This is one of the most common reasons people need to rotate images online.

Here's what happens: your phone's camera sensor is always in landscape orientation. When you hold your phone vertically, the sensor still captures a landscape image, but the phone records your device's orientation as an EXIF metadata tag (a number from 1 to 8). Some apps read this tag and display the photo correctly; others ignore it, showing the raw sensor output — which appears sideways.

1

Normal

No rotation needed

2

H-Mirror

Flipped horizontally

3

180°

Rotated 180°

4

V-Mirror

Flipped vertically

5

Transpose

Rotated 90° CW + H-flip

6

90° CW

Most common portrait

7

Transverse

Rotated 90° CCW + H-flip

8

90° CCW

Upside-down portrait

Values 6 and 8 are the most common culprits — they represent photos taken in portrait mode on smartphones. When an app or website ignores the EXIF tag, these photos appear rotated 90° clockwise or counterclockwise.

How to fix it

Upload the sideways photo to our tool and use the 90° CW or 90° CCW button. This physically rotates the pixels so the image displays correctly everywhere, regardless of whether the viewing software reads EXIF data. The EXIF orientation tag is also stripped in the process.

Rotate vs Flip: What's the Difference?

Rotate

Turns the image around its center point, like rotating a steering wheel.

  • • 90° CW: landscape → portrait
  • • 90° CCW: portrait → landscape
  • • 180°: upside-down fix
  • • Custom: horizon straightening

Flip (Mirror)

Creates a mirror image along an axis, like looking in a mirror.

  • • Horizontal: swaps left ↔ right
  • • Vertical: swaps top ↔ bottom
  • • Selfie correction
  • • Design symmetry effects

Common Rotation Angles and When to Use Them

90° CW

Portrait to landscape, scanned documents

90° CCW

Landscape to portrait, phone photos

180°

Upside-down photos, scanned pages

1°–5°

Straightening crooked horizons

Lossless Rotation: Preserving Quality

  • 90°, 180°, 270° rotations are essentially lossless for all formats. The pixels are rearranged without re-encoding.
  • PNG and WebP rotations are always lossless regardless of angle.
  • Custom angle rotations require re-encoding, which may introduce minimal compression artifacts for JPG output. Use PNG output for perfect quality.
  • Flip operations are always lossless — they simply reverse the pixel order.

Common Questions

Will rotating reduce my image quality? For 90° and 180° rotations, quality is perfectly preserved. For custom angles (like 15° or 45°), the image must be re-rendered onto a larger canvas, which can introduce minimal artifacts on JPG output. Choosing PNG output avoids this entirely.

Can I rotate multiple images at once? Yes — our batch mode lets you upload up to 20 images and apply the same rotation to all of them. Download individually or as a ZIP archive.

Does this work on mobile? Yes, the tool is fully touch-friendly. Tap the quick action buttons to rotate or flip, then download. Works on both iOS and Android browsers. For more editing options, try our image cropper or image resizer.

画像回転に関するよくある質問

はい。登録不要で、ウォーターマークもありません。

はい。1 回の操作で組み合わせて適用できます。

回転は中心を軸に向きを変える操作、反転は左右または上下を鏡写しにする操作です。

90°、180° などの標準角度では影響は小さく、任意角度では再サンプリングが入る場合があります。

EXIF の向き情報を一部のソフトが無視するためです。

写真の表示方向を示すメタデータです。

はい。-180° から +180° の範囲で指定できます。

はい。同じ設定を複数画像にまとめて適用できます。

JPG、PNG、WebP、AVIF、BMP、GIF に対応しています。

いいえ。処理はブラウザ内で完結します。

画像をオンラインで回転 - 無料回転・反転ツール | TinyImagePro