Compress MOV
MOV files from an iPhone or Mac are huge. Drop yours in to shrink it — and get a smaller MP4 that’s easier to share, all without uploading anything.
Drop a video here, or browse
MP4 · MOV · WebM — compressed right here, nothing uploaded
100% on-device · no signup · no watermark
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Bigger files take longer — your CPU does the work, privately.
Why MOV files are so big
iPhones and Macs record QuickTime MOV files, often in high-bitrate H.264 or HEVC at 1080p or 4K. A minute of 4K can be hundreds of megabytes. That’s great for editing but painful to share.
This tool re-encodes your MOV to an efficient MP4 at the target you choose — much smaller, and more universally compatible than the original MOV for upload to most platforms.
MOV in, MP4 out
The output is a standard H.264 MP4, which plays everywhere and is accepted by Discord, WhatsApp, email and every social platform — places a raw MOV sometimes isn’t.
Frequently asked questions
How do I make an iPhone video smaller?
Drop the MOV here and pick a target size or platform. It’s compressed in your browser into a smaller MP4 you can share or upload — no app and no upload to a server.
Does it convert MOV to MP4?
Yes — the output is always an H.264 MP4, which is smaller and more widely accepted than a raw MOV.
Will it work with 4K iPhone video?
Yes, though very large 4K clips depend on your device’s memory since it all runs locally. The YouTube preset shrinks 4K a lot by capping the frame’s short side at 1080 px: a landscape clip becomes 1920 × 1080, a vertical one 1080 × 1920.
Is my video private?
Completely — it never leaves your browser. Nothing is uploaded.