Compress Video — Make Videos Small Enough to Send

Choose how small the file must be — 10 MB for Discord, 25 MB for Gmail, or your own number — and Localvert works out the bitrate and resolution that fit. If the target is tight, the resolution steps down to 720p, 480p or 360p, because a smaller sharp video looks better than a full-size blurry one.

Add a start and end time to cut out only the part you need. Trimming first is the easiest way to keep quality high, since fewer seconds means more bits for each one.

Instead of a slow software encoder, Localvert uses the video encoder built into your browser (WebCodecs), which runs on your computer's or phone's media hardware. A few minutes of 1080p video usually compresses in well under a minute, and the result is a standard MP4 (H.264 and AAC) that plays everywhere.

Video compressors usually upload the whole file before doing anything — slow on mobile data and risky for private recordings. Here the video is read and encoded inside your browser, so nothing is uploaded and there is no waiting for a transfer.