Sideways video?
Fixed in a second.
Rotate an MP4 or MOV left, right, or 180° — by writing the rotation into the file itself. No re-encoding, no quality loss, no upload.
How do I rotate a video without losing quality? Load the MP4 or MOV, click Rotate left, Rotate right, or 180°, then save. The rotation is stored as a display transform in the file — the video data stays byte-for-byte identical, and the whole thing takes under a second.
Video rotator
The preview updates live — the rotation you see is the rotation stored in the saved file. Your original is never modified.
Why this is instant (and lossless)
Most tools rotate a video by decoding every frame, turning it, and encoding it again — that's why a 2-minute clip can take a minute to rotate and comes out slightly softer. Phones don't do that: an iPhone portrait video is actually stored sideways, with a tiny "rotate 90°" instruction in the file that every player obeys. This tool writes exactly that instruction. A few dozen bytes change; the video data doesn't. The rotation lands in under a second regardless of file size, and the result is pixel-for-pixel identical to your original.
How to use it
- Load the MP4 or MOV — the preview shows the current orientation
- Click Rotate left, Rotate right, or 180° — the preview updates immediately
- Keep clicking if you overshoot (rotations stack), or press Reset
- Press Save rotated video — done
Videos that already carry a rotation (like phone footage) are handled correctly: the new rotation is composed with the existing one.
Honest limits
Rotation is stored as metadata, which every mainstream player honors — browsers, phones, YouTube, VLC, QuickTime, and editors like CapCut and Premiere. A rare very old tool might ignore it and show the original orientation. Input is MP4/MOV/M4V with H.264 or HEVC video; fragmented MP4s from streaming tools may not carry a patchable structure. If you need to rotate and trim or crop, do the rotation here first — the other tools will see the new orientation. Cropping a video is available in the video cropper, and cutting is in the video trimmer.
How do I rotate a video?
Load the MP4 or MOV, click rotate left, rotate right, or 180°, and save. The rotation is written into the file's metadata — the video itself is never re-encoded, so it takes under a second and quality is untouched.
Does rotating a video reduce quality?
No. The video pixels are never re-encoded — the tool writes a standard rotation transform into the file, the same mechanism phones use to store portrait videos. The video data is byte-for-byte identical to your original.
Why not just use a video editor?
Editors re-encode the entire file to rotate it — slow for long clips and it costs quality. This tool changes a few bytes of metadata instead: instant, lossless, and no editor to learn.
Will the rotated video look right everywhere?
Yes — phones, browsers, YouTube, VLC, QuickTime, and editors all honor rotation metadata; it is exactly how iPhone portrait videos work. A handful of very old tools ignore it, in which case the video shows its original orientation.
Which formats are supported?
MP4, MOV, and M4V files with H.264 or HEVC video. The file format is unchanged — you get the same container back with rotation applied.