Compress Video shrinks a large file so it's easier to share, email or upload, while keeping the picture looking as good as possible. Pick a quality preset and, optionally, a lower resolution — the tool re-encodes the video with H.264 right on your device and shows you exactly how much smaller it got.
Drop your file in. The current file size is shown so you know your starting point.
Choose Higher quality, Balanced or Smallest file, and optionally cap the resolution to 1080p, 720p or 480p.
Export to compress. When it's done you'll see the new size and the percentage saved.
It depends on the source, but the Balanced and Smallest presets typically cut file size substantially with little visible loss.
Yes — reducing to 720p or 480p shrinks the file further. Videos are never upscaled beyond their original size.
Re-encoding every frame is the most CPU-intensive task; a clear progress bar shows how far along it is.
No. This tool runs entirely in your browser — your file is processed on your own device and never leaves it. The only network request is an anonymous usage counter.