Video Rotate
Rotate a sideways or upside-down video 90°, 180° or 270°, or flip it — no upload.
About this tool
Pick the turn, optionally mirror, check a preview frame, then re-encode: the browser plays the video through once and records the rotated picture with its sound. WebM out, nothing uploaded.
Why videos come out sideways
Phones don't rotate the pixels when you hold them sideways; they store the frames one way and add a flag saying “display rotated”. Most players honour it; some editors, upload forms, TVs and older software ignore it, and the video appears on its side. The robust fix is to bake the rotation into the frames themselves, which is what this tool does — after it, no flag is needed. Because browsers can't rewrite a video file directly, the honest method is a re-record: the video plays through once at full speed while the rotated frames are captured with the soundtrack, so a two-minute clip takes two minutes and comes out as WebM (browsers can't write MP4 from the recorder — the MP4 converter handles that step where supported). The mirror options fix the other common complaint: front-camera recordings that show text backwards. Cropping and compression use the same pipeline; the image rotate tool does the still version.
Frequently asked questions
Why does it take as long as the video?
The browser re-records the rotated picture in real time — the only way to change a video's frames on-device without a server. Two minutes of video, two minutes of work.
Why is the result WebM?
Browsers can record WebM everywhere but not MP4. WebM plays in every browser and modern player; convert with the MP4 converter if a particular app insists.
Does the sound stay?
Yes, wherever the browser supports capturing it (all modern ones do).
Is the video uploaded?
No — decoding, rotation and recording all happen in your browser.