Rotate a video, free
Turn a clip that came out sideways back to portrait or landscape — with no re-encode for MP4 and MOV, in seconds, in your browser.
Drop your video here, or choose a file
Up to 500 MB, up to 10 minutes. The footage stays in your browser — we never upload it.
It works on a phone too. For MP4 and MOV the rotation is a matter of seconds even here, because nothing is re-encoded.
Why does a phone video end up on its side?
Because a phone's camera always records in the same orientation and only writes a separate piece of data about how you were holding the device. Most players take that into account — but not all of them. That is why a video can sit upright on your phone and then lean sideways after an upload, or appear upside down on another machine.
This tool rewrites exactly that piece of data in MP4 and MOV files. It does not re-encode the picture, it only corrects what was ambiguous — which is why nothing is lost and why even a 200 MB recording is done in seconds. A re-encode is only needed when the file's format cannot store that data, or when you also want to mirror the picture, and we say so up front.
Rotating and mirroring — what is the difference?
Rotating turns the picture: the 90-degree steps make a landscape clip portrait and the other way round, and 180 degrees puts an upside-down recording right. Mirroring does not turn anything — it flips the picture like a mirror, which is what front-camera footage usually needs, where any writing reads backwards.
The fast, re-encode-free route only exists for rotation, because a file's header can describe a turn but not a mirror. If you mirror, the video is produced by re-encoding — at practically identical visual quality, just more slowly.
Frequently asked questions
Does rotating hurt the quality?
Not at all on the fast path: the frames stay bit-for-bit the same and only the file's header changes. If a re-encode is needed — a different format, or a mirror — then one generation of compression loss occurs, but we re-encode at a quality where it is practically invisible.
Why do some players get the rotation wrong?
Because the rotation is a separate field in the file, not something baked into the picture. Browsers, phones and the big video platforms all honour it; some older editing suites, presentation software and projectors do not. If your video runs into one of those, choose the “Re-encode” mode: the turn is then baked into the picture and there is nothing left to misread.
Does my video get uploaded anywhere?
No. The file stays in your browser and the rotation runs here too. Nothing goes anywhere unless you click “Share with a link” yourself on the finished video.
How big a video can it handle?
Up to 500 MB and 10 minutes, like the other video tools — ffmpeg running in a browser works in a limited amount of memory. For anything bigger, upload the original to FileMv and share it with a link.