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

Large MOV files, especially QuickTime screen recordings or videos larger than 1 GB, can quickly consume storage space and are usually too large to attach to an email. For How to shrink a .MOV file to email, FastFlix can re-encode the video with a more efficient codec and lower bitrate while letting you control the balance between file size and visual quality.

How to shrink a .MOV file to email while keeping reasonable video quality

1. Download the program from its official GitHub releases page, install it, and open it on your PC or Mac.
2. Click Select Video and open the large MOV file. Check the source resolution, frame rate, and duration before changing the encoding settings.
3. Select H.264 for broad compatibility, or H.265/HEVC when a smaller file is more important and the receiving device supports it.
4. Choose a quality-based encoding mode and increase compression gradually rather than immediately using very aggressive settings. For screen recordings, reducing an unnecessarily high frame rate can also reduce the output size.
5. Set the output container to MP4 when you need a widely supported file for sharing. Choose a different output folder so the original MOV file is not overwritten.
6. Start encoding and check the resulting file size and playback quality. When preparing a video for email, compare the final size with your email provider's attachment limit and compress it again if necessary.

Notes:

• Keep the original MOV file until you check the result.
• H.265 usually compresses more efficiently but has less universal compatibility than H.264.
• Very large videos may still be too large for email even after compression.