MOV Compressor

Compress QuickTime .mov videos. Output is a smaller .mov compatible with macOS, iOS, and Windows.

ToolLast updated ·Reviewed by the OnlineFileConverter team

Drop or click to select (mov, qt)

First run downloads ~30MB ffmpeg engine; subsequent runs are instant. Everything stays in your browser.

About this tool

MOV is Apple's QuickTime container, the default output for iPhone, iPad, and Mac screen recordings. Under the hood, MOV files usually contain the same H.264 or HEVC video as MP4 — they just use a different wrapper. That means the compression options are essentially the same as MP4.

This MOV Compressor re-encodes your file with ffmpeg running in your browser. Your video never uploads anywhere; the compression happens on your own CPU. Output stays as a MOV file you can drop straight back into iMovie, Final Cut, or any QuickTime-compatible app.

If you don't need MOV specifically, converting to MP4 first usually gives you the best compatibility across other platforms.

Why use it

  • 100% in-browser — no upload, no server, no signup.
  • Powered by ffmpeg.wasm — the same engine pros use.
  • Set a target file size in MB to hit upload limits exactly.
  • Free with no watermark.

How to use it

  1. 1
    Upload your MOV

    Drop the .mov file from your iPhone, Mac screen recording, or camera.

  2. 2
    Set quality or target size

    Pick a CRF (23 is the visually neutral default) or enter a target file size in MB.

  3. 3
    Download the smaller MOV

    When the encode finishes, save the new file. Your original is untouched.

Common use cases

  • Shrinking iPhone screen recordings before sharing.
  • Compressing 4K MOV footage from a DSLR or mirrorless camera.
  • Trimming MOV size for email attachments.
  • Saving disk space on iMovie or Final Cut Pro projects.
  • Sending demo clips to clients without overloading their inbox.

Tips for best results

First conversion is slow, the rest are fast

The ffmpeg engine (~30 MB) downloads and caches the first time you use it. After that it stays ready for instant runs.

Resolution matters more than bitrate

Dropping a 4K clip to 1080p often halves the file before you even touch the bitrate.

Trim before compressing

If only the first 30 seconds matter, cutting the rest of the clip is the cheapest way to shrink the file.

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