Target Size Video Compressor

Sharing a video on Discord (10MB limit), WhatsApp (16MB), or as a Gmail attachment (25MB) usually means either paying for a desktop editor or uploading your private footage to a random "compressor" website and hoping for the best. We built this tool because hitting an exact file size should not cost money or your privacy: pick a target size, and your video is re-encoded on your own device with a bitrate calculated to fit.

How it works: 1) Drop your video — nothing is uploaded, the file is opened locally. 2) Choose a preset (Discord 10MB, WhatsApp 16MB, Gmail 25MB) or type any custom size in MB. 3) Click Compress — the tool calculates the optimal video bitrate from your clip's duration, automatically lowers the resolution if needed, and encodes an MP4 that fits your limit. No watermark, no account.

The bitrate math runs in milliseconds; the encoding itself uses your browser's built-in WebCodecs engine with hardware acceleration where available. If the first pass lands slightly over target (variable bitrate files are hard to predict), the tool automatically re-encodes at a lower bitrate until it fits.