Compress for WeChat
Compress to around 25 MB, which is the size WeChat usually accepts for a file. The estimate updates as you change settings. Free, in your browser, no upload, no account.
Result right hereDrop a video here, or click to choose
MP4 · MOV · MKV · WebM · audio · images · subtitles · ZIP
WeChat refusing a file is one of the most common reasons anyone compresses a video at all. The number that matters is around 25 MB.
Pick the preset and the bitrate is worked backwards from that target. The estimate is shown before you start.
If the file is already under the target, the page says so rather than "compressing" it into something larger — which is what a naive target-size calculation does.
FAQ
Is 25 MB exact?
It is the usual limit and it has changed before. The number belongs to WeChat, not to this page.
What if my file is already small?
The page tells you, and leaves it alone. Compressing a small file towards a large target would make it bigger.
Will it hit the target exactly?
Close. Encoders are not perfectly linear, so the result lands a little either side.
Should it be vertical too?
For Moments, yes — the "make it vertical" tool crops to 9:16.
Is anything uploaded?
No.