Rotate a video 90 degrees clockwise, 180, or 270 (a quarter turn counter-clockwise) and save it as MP4 without losing quality. The new orientation is written into the file’s metadata and every frame is copied exactly as recorded, so nothing is re-compressed and even a long clip is close to instant. It is the fix for a phone video that plays sideways on a computer, or footage that was filmed upside down. The sound is kept. Up to 20 clips can be turned in one go, and the video never leaves your browser.
How it works
- Drop the clip, or up to 20 that need the same turn.
- Pick 90° to turn it clockwise, 270° for counter-clockwise, or 180° to set an upside-down clip right. The panel shows the new width × height.
- Press Process & download. One clip saves as an MP4; a batch arrives as a ZIP with a report.
Questions
- Which way does 90° rotate a video?
- Clockwise. If the top of the picture currently points to the left, 90° stands it upright; if it points to the right, choose 270°, which is the same as 90° counter-clockwise. 180° fixes a clip filmed upside down. The new dimensions are shown before you start, so a 1080 × 1920 portrait clip turned 90° reads 1920 × 1080.
- Does rotating a video reduce its quality?
- No. The frames are copied bit for bit and only the orientation flag in the MP4 changes, so quality is identical, the file is about the same size, and the job takes a fraction of the time a re-encode would. One caveat: a small number of players and editing apps ignore that flag and show the clip in its old orientation. Browsers honour it.
- Can I flip or mirror a video?
- Not with this tool. It turns video in quarter turns only, and a mirror image is a different operation that no rotation can reproduce: a selfie-camera clip with backwards text stays backwards at every angle. 180° turns a clip upside down, which is not the same as flipping it.
- Does my file get uploaded?
- No. The models and all processing run inside your browser on your own device. You can verify this yourself: open your browser’s DevTools, watch the Network tab, and process a file: there are no uploads. After the first visit most tools also work fully offline.
- Does rotating re-encode the video?
- No. The rotation is written into the MP4’s orientation metadata and the frames are copied unchanged, so it is near instant and loses no quality. A few third-party players ignore that flag; browsers and phones honour it.
- What happens to the audio?
- Rotate keeps it untouched. Reverse always drops it, since reversed speech is rarely what anyone wants. Speed changes keep it in sync, or you can drop it with one switch.