Compress video for Messenger
Messenger chokes on big videos — uploads stall and quality gets crushed. Compress to an exact size first, and control the tradeoff yourself.
Drop your video here
or
MP4, MOV, WebM… — processed 100% on your device
Target size
Planned output:
ð¦ Large file: encoding several hundred MB in your browser can take a very long time, and phones may run out of memory. Desktop Chrome recommended.
Loading encoder…
🔒 Your video never leaves your device. No upload, no signup, no watermark.
Why Messenger mangles your videos
Messenger aggressively re-encodes anything you send — a pristine 200 MB recording and a sloppy 30 MB one can arrive looking equally bad. The fix is counterintuitive: compress it yourself first, to a size Messenger accepts without a fight. You keep control of the quality-per-megabyte tradeoff instead of handing it to a chat app.
25 MB is a sensible default: light enough to send fast, heavy enough to survive one more encode on arrival.
Need a different target? Compress to 20 MB · Compress to 50 MB · Compress for WhatsApp
FAQ
How do I compress a video for Messenger?
Drop your video above, keep the 25 MB target (or type any size), and hit Compress. VidSizer solves the exact bitrate for your clip and verifies the output lands under your target.
Does Messenger reduce video quality?
Yes — heavily. That's exactly why you compress first: a well-encoded 25 MB file survives Messenger's re-encode far better than a 300 MB original uploaded raw.
Is my video uploaded anywhere?
No. Everything runs in your browser. No upload, no account, no watermark.