Komprez

Prepares a clip so WhatsApp’s encoder has less to ruin. Process it here, then post the result straight to your status.

What it does to the clip

Size
longest side capped at 1280
Frame rate
halved above 30 fps
Video
H.264 High, up to 0.20 bit/px
Ceiling
never above what the source carries
Audio
AAC, untouched where possible

WhatsApp re-encodes everything to about 3000 kbps whatever you send, but it keeps your frame rate. A 60fps clip gets half the data per frame, and WhatsApp shrinks it to 464×832 as well. Handing it a clean 720p file at 30fps is what buys back the detail.

Then, in WhatsApp

  1. Get the saved file onto your phone, by AirDrop or iCloud.
  2. Open Status and add it straight from Photos.
  3. Do not send it to a chat and forward it.

Forwarding is the popular advice and it is wrong. A forwarded clip lands on status at 480×848, against 720×1280 posted directly. Forwarding re-encodes a file WhatsApp already compressed once, so you pay twice.