オンライン動画回転 — 向きを無料で修正
動画を90°、180°、270°回転。横向きスマホ動画の修正や、画質を落とさず向きを変更できます。
オンライン動画回転 — 向きを無料で修正 を3ステップで使う
- 1
Choose your video
Drag and drop or browse for the file. Any major format up to 2 GB.
- 2
Pick rotation angle
Select 90° clockwise, 180°, 270° clockwise, or flip horizontal/vertical.
- 3
Save the rotated video
Processing runs in your browser. Download the result instantly.
オンライン動画回転 — 向きを無料で修正 を選ぶ理由
All rotation presets
90° CW, 180°, 270° CW, plus horizontal and vertical flip.
No upload
FFmpeg.wasm rotates locally. Your video stays on your device.
Metadata-only when possible
For MP4/MOV with rotation metadata, we update the metadata tag without re-encoding — instant and lossless.
Fixes phone recordings
iOS and Android sometimes record sideways depending on phone orientation. This is the fast fix.
Free, unlimited, no watermark
No account, no cap, no branding on your output.
オンライン動画回転 — 向きを無料で修正 の利用者
Fix sideways phone recordings
iPhone and Android videos sometimes play sideways on computers. Rotate to fix instantly.
Correct drone footage
Drone cameras record upside-down in some flight modes. 180° rotation fixes it.
Adjust for platform
Some platforms ignore rotation metadata. Re-encoding with rotation baked in guarantees correct playback.
世界中のクリエイターのために
世界中のクリエイター、ジャーナリスト、学生、研究者のために。
よくある質問
- Is rotating lossless?
- For MP4 and MOV files that store a rotation metadata tag, we update the tag and stream-copy — bit-identical to the source. Other cases require re-encoding.
- What rotation angles are supported?
- 90° clockwise, 180°, 270° clockwise (= 90° counter-clockwise), horizontal flip, vertical flip.
- What formats are supported?
- MP4, MOV, AVI, MKV, WebM, FLV, WMV for input. Output: MP4.
- Does the audio stay synced?
- Yes. Only the video track is rotated. Audio is copied untouched.
- Is this really free?
- Yes, no sign-up, no watermark, unlimited use.
- Why is my phone video sideways?
- Phones record at a fixed hardware orientation and use a metadata tag to tell players how to display. Some players ignore the tag.