Reverse a video clip online so it plays backwards: water running uphill, a jump played in reverse, a diver flying back up onto the board. Every frame is decoded, held in memory, then encoded again in reverse order on your own hardware, with the original spacing between frames kept. Because the whole clip is buffered, there is a length limit: 30 seconds at 720p and 30 fps, and less at higher resolution or frame rate, about 13 seconds of 1080p at 30 fps. The reversed clip has no sound. Nothing is uploaded at any point.
How it works
- Drop a short clip: under 30 seconds, and shorter still if it is 1080p or 60 fps. Trim a longer video first.
- The page opens on Reverse and flags a clip over 30 seconds straight away. Press Process & download.
- Frames are buffered, then encoded backwards with a progress bar and time left; the reversed clip downloads as soon as it is done.
Questions
- Can I reverse a video with the sound?
- No. Reverse always drops the audio, and the result line says so. Reversed speech and music are rarely what anyone wants, and reversing a soundtrack in step with re-timed video is a separate job this tool does not attempt. If the clip needs sound, add a new track over the reversed video in an editor.
- How long a video can I reverse?
- Up to 30 seconds, and less as resolution or frame rate rises, because every frame is held in memory at once. The budget is 30 seconds of 720p at 30 fps, which works out to roughly 13 seconds of 1080p at 30 fps, 6 seconds at 60 fps, and 3 seconds of 4K. Clips over the limit are refused with a message before any frames are processed, so trim the part you want first.
- Does reversing a video lower its quality?
- Slightly. Unlike rotating or changing speed here, reversing has to re-encode, because compressed video can only be decoded forwards. Frames are buffered as 85% quality JPEGs, then encoded at a bitrate worked out from the clip’s size and frame rate, so the loss is small but real. Output is MP4 (H.264) when your browser can encode it, otherwise WebM.
- 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.