Compress video for iMessage
Big videos over iMessage fail, crawl, or arrive as mush — especially on cellular, and especially to green-bubble friends. Shrink to an exact size first.
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 iMessage struggles with big videos
Blue bubbles or green, a 500 MB 4K clip is a lot to push through a messaging pipeline. iMessage compresses on send with no say from you; fall back to SMS/MMS (green bubbles) and carrier limits crush it to a postage stamp. Starting from a right-sized file — say 20 MB — means it sends fast and arrives looking like you intended.
On iPhone, do it right in Safari: no app to install, nothing uploaded. See compress video on iPhone.
Need a different target? Compress on iPhone · Compress to 20 MB · Compress to 50 MB
FAQ
How do I compress a video for iMessage?
Drop your video above and hit Compress with the 20 MB target. Save the result and attach it in Messages — it sends in seconds instead of stalling.
Why do my videos arrive blurry?
Either iMessage compressed your huge original on send, or the message fell back to MMS, where carriers enforce tiny size caps. A pre-compressed 20 MB file sidesteps both problems.
Is my video uploaded anywhere?
No. Everything runs in your browser. No upload, no account, no watermark.