Reduce file size for easier sharing.
or drop it here · MP4, MOV, WebM, MKV, AVI, M4V and 3GP · up to 500 MB
Processed in your browser. Files are never uploaded.
Files stay on your device. The first run downloads the processing engine once (about 30 MB).
Drop a video onto the compressor or click to choose one from your device.
Choose a target size to fit an upload limit, or pick a quality level and maximum resolution.
Press Compress, compare the old and new size, preview the result and download it.
The compressor calculates the bitrate from your clip’s length, so the result lands close to the size you choose.
Quality mode uses constant-quality encoding, spending bits on detailed scenes and saving them on static ones.
Most 4K phone videos look fine at 1080p or 720p on social media and chat apps, and are far smaller.
Compression runs on your device with WebAssembly. No upload queue, no account, no watermark.
Fit clips under the free upload limit without trimming them.
Get a video under 25 MB so it sends as an attachment.
Smaller videos load faster and use less hosting bandwidth.
Create new footage, plan your story or improve your source.
Choose “Target size”, select 10 MB (or 50 MB if you have Nitro Basic) and press Compress. Very long videos may need a lower resolution to look good at that size.
Some detail is always traded for size. Quality mode at “High” is hard to tell apart from the original on a phone screen; target-size mode lowers quality only as much as the size requires.
Phone recordings often shrink by 50–80% at High quality, and more when downscaled. Files that are already heavily compressed shrink less.
Yes, in a modern mobile browser. Short clips work well; long or 4K videos are faster on a computer.
No. The tool runs inside your browser tab with WebAssembly. Your file is read from your device, processed in memory and offered back as a download. Cut AI never receives a copy of it.
Files up to 500 MB are accepted. Above about 200 MB the tool warns you first, because browser memory is limited and long, high-resolution videos take longer to process. A desktop browser handles large files better than a phone.
