Rotate & Flip Video

Open a video, turn it 90° left or right, 180°, or mirror it horizontally or vertically, and the preview shows the result before you save. Phone videos filmed sideways and webcam recordings that come out mirrored are the usual cases. Everything happens in your browser; the video is never uploaded.

There are two ways to save. For MP4 and MOV files with H.264 or HEVC video — what phones and most cameras record — the tool can write a rotation instruction into the file instead of changing the frames. That takes a moment even for long videos and loses no quality at all, because not a single frame is re-compressed. Every modern player, phone and browser honours the instruction, but some older editors, TV media players and upload pipelines ignore it and show the original orientation. Untick the fast option, or use a WebM file, and the tool re-encodes the video with the rotation baked into the pixels, which looks the same everywhere at the cost of time and a slight generational loss.

Re-encoded videos are saved as MP4 with H.264 when your browser can encode it (Chrome, Edge and Safari on most systems) and otherwise as WebM with VP9, which the tool tells you. The sound is kept, copied as it is when the container allows. Turning a video by 90° swaps its width and height, so a 1920 × 1080 landscape clip becomes 1080 × 1920 portrait. Video processing uses the open-source Mediabunny library (MPL-2.0), loaded only when you open a video.