Compress Video
The clip is replayed and re-saved in real time, so keep this tab open while it works.
Make videos small enough to send
Phone videos are big — often 100 MB+ per minute in 1080p or 4K — and email or chat apps refuse them. This tool lowers the resolution and bitrate to make a much smaller file. Choose a target size (e.g. 25 MB for many email services) and the bitrate is calculated from the clip length.
Options
- Resolution — 720p looks fine on phones and laptops; 480p and 360p are much smaller.
- Quality — “Fit a target size” is easiest; or pick a fixed bitrate.
- Range — keep only part of the video to save even more.
- Sound — drop the audio track if you don't need it.
How it works and its limits
Browsers can't re-encode video files directly, so the clip is played in the background and re-recorded with MediaRecorder. That takes roughly as long as the clip itself; keep the tab visible. Chrome and Edge save MP4 or WEBM depending on support. Very fast motion can come out bigger than the estimate. Your video is never uploaded.
Frequently asked questions
Can I switch tabs while it's working?
Browsers may slow down playback in hidden tabs. Keep this tab open until it finishes.
The result is bigger than my target.
Videos with lots of motion can overshoot. Lower the target a little or drop one resolution step.
Does it work on phones?
In recent Chrome and Safari, yes — but slower than a computer and heavy on battery.
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