Free browser tool

Free MOV Compressor Online

Shrink big MOV files from your Mac or iPhone so they fit in an email, a chat or a doc. Pick where it's going and the compressor hits that size, then saves an MP4 that plays everywhere. No upload, no sign-up. Only need a format change? Use the MOV to MP4 converter instead.

No upload
No sign-up
No watermark
Email, Discord & WhatsApp sizes

Compress for

Mode

Quality

CRF 28. Text in screen recordings stays sharp. The right default for most files.

Max resolution

Frame rate

Keep audioAudio is re-encoded to AAC at 96 kbps. Untick it for silent screen recordings to save a little more.

Drop your video here

or click to browse — MP4, MOV, MKV, AVI, WebM

Your video never leaves your device — 100% private

How to compress a MOV file

Drop your MOV

Drag in a MOV screen recording or iPhone video. MP4, MKV, AVI and WebM work too. Nothing leaves your device.

Pick where it's going

Click Email, WhatsApp, Discord or Notion to hit that size limit, or choose a quality preset. Optionally cap the resolution and frame rate.

Download the MP4

Compare the before and after size, then click Download. Change a setting and re-compress without dropping the file again.

Compressing MOV files from your Mac

Why Mac recordings are so large

macOS records the screen at full Retina resolution and a generous bitrate, so a five-minute recording can easily pass a few hundred MB. Most of that is detail nobody needs when the video is watched in a chat window or an email.

Size limits by destination

Gmail: 25 MB · Outlook: 20 MB
WhatsApp: 16 MB before it recompresses
Discord: 10 MB on a free account
Notion free plan: 5 MB per file

Keeping text readable

Screen recordings are mostly still, so the encoder spends its bits on the parts that change and text stays sharp. If a very small target makes text blurry, cap the resolution at 1080p or 720p rather than squeezing the bitrate further.

Skip the compress step next time

Screen Charm records your Mac and exports an MP4 at the size and quality you choose, up to 4K, with auto-zoom on your clicks. There's no oversized MOV to shrink afterwards.

Frequently Asked Questions

How do I compress a MOV file for free?

Drop the MOV into the compressor. Pick a destination like Email or Discord to hit its size limit, or choose a quality preset. When the encode finishes, compare the before and after size and click Download. There's no upload, sign-up or watermark.

Why are MOV files so big?

Mac screen recordings and iPhone videos are saved at a high bitrate so nothing is lost while recording, often at Retina resolution and up to 60 fps. That's right for the original, but far more than you need for sharing. Re-encoding once at a sensible bitrate usually cuts a screen recording by 60–80%.

Will the output still be a MOV?

The compressed file is saved as MP4 (H.264). It's the same kind of video inside, but MP4 plays everywhere — Windows, Android, browsers and every upload form — so it's the better format for sharing.

Is my MOV uploaded anywhere?

No. Compression runs locally with FFmpeg compiled to WebAssembly, so private recordings never leave your device and there's no size limit beyond your browser's memory.

What size should I compress to for email?

Gmail allows 25 MB attachments and Outlook 20 MB, so the Email preset targets 20 MB to fit both. For WhatsApp, 16 MB avoids its own recompression; for Discord, 10 MB fits a free account; Notion's free plan accepts files up to 5 MB.

How do I make Mac screen recordings smaller from the start?

Record a selected window or area instead of the full Retina screen, and keep recordings short. Screen Charm exports MP4 directly at the resolution and quality you choose, so there's no separate compress step.