Reduce an MP4 file size
Compress MP4 Online
Reduce the size of MP4 files while keeping the output easy to play on phones, browsers, and social platforms.
Drop a video here
Reduce an MP4 file size. MP4, MOV, and WebM are processed locally in your browser.
Your video is processed in this browser and is not uploaded to this site.
How to compress your video
- 1Drop your MP4, MOV, or WebM file into the compressor, or click to choose one.
- 2Set a target size in MB, or pick a quality preset if you have no strict limit.
- 3Click Compress video and wait while your browser encodes the file locally.
- 4Download the compressed MP4 - no watermark, and nothing was uploaded.
Recommended settings
MP4 is already compatible, so the main job is choosing the right bitrate.
Use target MB for upload limits and quality mode for general shrinking.
If your MP4 is 4K, downscaling can save a lot of space.
Questions
Will the output stay MP4?
Yes. The default output is MP4 for broad compatibility.
Can I compress MP4 without a watermark?
Yes. This tool does not add a watermark.