How can I compress MOV video files over 1gb to small size on PC or Mac?

VideoOptimizer supports MOV (.mov) files and offers two compression modes that are particularly useful for files over 1GB:

• Target Size Mode — Reduces your file to a target percentage of the original (10%, 20%, 30%, 40%, or 50% presets available). This mode performs 2-pass encoding for better bitrate control, making it ideal when you need to compress MOV file over 1GB to a specific size.
• Quality Priority Mode — Uses CRF (Constant Rate Factor) to maintain consistent visual quality while reducing file size.

You can also choose between H.264 (libx264) and H.265 (libx265) codecs, with H.265 offering better compression efficiency for large files.

how to compress MOV file over 1gb:

1. Download the ready-to-run Windows EXE from the GitHub Releases page (no Python installation required)
2. Select Input Video — Click "Browse" or drag & drop your MOV file
3. Select Output File — Choose where to save the compressed file
4. Set Reduction — Use the slider or presets (10–50%) and select Target Size or Quality Priority mode
5. Start Conversion — Click "Start ▶" and monitor the real-time progress bar

All processing is fully offline (no internet required), and the threaded background conversion keeps the UI responsive even with large files. If you're wondering how to compress MOV file over 1gb without paying for software, this tool handles the task efficiently.