No upload, 100% local, no account

Rotate / Flip video

Rotate your video 90°, 180° or 270°, or flip it horizontally/vertically, re-encoded so it plays the right way up everywhere.

How Rotate video works

Rotate or flip any video, 90°, 180°, 270°, horizontal mirror, or vertical flip, using ffmpeg WebAssembly. The tool applies a fast stream transform; when possible it uses copy mode so the video data itself is not re-encoded, keeping quality intact and processing time short.

Expect near-instant results for short clips in copy mode; longer videos or a forced re-encode take more time. Horizontal mirror and vertical flip sit alongside the rotation angles, handy for correcting a reversed selfie-camera clip.

Frequently asked questions

Are my files uploaded to a server?

No. ffmpeg compiled to WebAssembly rotates or flips your video in this browser tab, it is read into memory on your own device and transformed there (a transpose filter for 90°/180°/270°, hflip or vflip for mirroring; copy mode rewrites only the container metadata when possible), and the result is offered as a local download. Nothing reaches Sunasty or any third party. Open your browser's DevTools, go to the Network tab and watch: no request carries your video.

Will rotating reduce video quality?

When the format allows it, the tool uses stream copy and only rewrites the container metadata, so there is no quality loss at all. If the codec or container requires a full re-encode (for example some older MP4 profiles), a minimal quality reduction is unavoidable, but it remains imperceptible in practice.

Can I flip the video horizontally instead of rotating it?

Yes. The tool offers horizontal mirror and vertical flip as separate options alongside the rotation angles, so you can correct a selfie-camera reversal or a wrongly oriented clip without re-shooting.

Does it work offline?

Yes, once the page and the ffmpeg engine have loaded. The engine is sizeable and is fetched on first use; after that, rotating videos works entirely on your device without any network connection.

Is it free? Do I need an account?

It is completely free and requires no sign-up. There are no watermarks, no daily limits and no tracking cookies needed to use the tool.