About 16 MB in practice
WhatsApp compresses on its own and still rejects oversized clips. 8 MB or 10 MB is the safe stamp if a send keeps failing. This site is for that moment — not a new WhatsApp.
Output about 8 MB · MP4 · files stay on this device
WhatsApp compresses on its own and still rejects oversized clips. 8 MB or 10 MB is the safe stamp if a send keeps failing. This site is for that moment — not a new WhatsApp.
Drop the file in the browser trial if it is short. Anything bigger belongs in the desktop app. VideoToSize plans a target bit rate from the duration, then encodes H.264 on your computer. Nothing is uploaded.
WhatsApp will compress again. Do not chase perfect quality here; chase a file that actually sends. Preview on the phone before you delete the original.
It moves with the app version and whether you send as a file. If 16 MB fails, drop to 8 or 10 MB.
Search happens on phones. The actual job is happier on a computer. Use the desktop app for anything past a short take.