Compressing Video on Mac
has never been easier!

The most complete tutorial ever on How to Compress a Video on Mac. We provide multiple troubleshooting solutions here for Mac users.

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Do you know how Big your various video file sizes are?

Most of our video files come from iPhones, screen recording, cameras, and Drone, etc. We looked at 2-minute video measurements from these devices. The result is shown below.

From Drone
1.5GB [4K/30fps]
From Gopro
1GB [4K/60fps]
Recorded Videos on Mac
1GB
From iPhone
0.8GB [4K/60fps]
File Size of a 2-minute video (Approximately)

Why would we need to compress a video file?

video compressor for mac

To share on social media

While you are completing the requirements to share your video across any social media platform such as YouTube, Instagram, Facebook, or Vimeo, you may encounter issues with its upload due to video sizes.
Each social media channel limits the maximum video size that can be uploaded. So it is important to compress video for social media sharing.

video compressor for mac

To reduce memory usage

Videos from mobile phones, cameras, screen recordings, or websites are huge, which may exceed a limit and cause a problem for your memory. Under such circumstances where your video is large, you will have to compress them to reduce memory usage and save memory for more content.

video compressor for mac

Upload to Email for sending

Sending Emails is one of the ways we communicate on a daily basis, sometimes you may want to attach video files to your Email. However, the video size can not exceed 25MB, or you will have to compress it for sharing.

How to Compress a video on Mac?

Compress video on Mac for free

  • video compressor for mac

    Step 1

    Launch VLC media player on your Mac. Proceed to the “File” tab and click on the "Convert/Stream" option.

  • video compressor for mac

    Step 2

    Click on the option of "Open media…" to import the video file.

  • how to compress a video on mac

    Step 3

    Select the appropriate Profile for compression or "Customize" it. Click on"Save" to compress the video with VLC.

Launch VLC media player on your Mac
import the video file
compress the video with VLC
  • how to compress a video on mac

    Step 1

    Launch the video across QuickTime on Mac that you wish to compress.

  • how to compress a video on mac

    Step 2

    Proceed to the "File" tab, followed by "Export As" from the drop-down menu to choose a file compression quality.

  • how to compress a video on mac

    Step 3

    Set the name and location of the compressed file and click "Save" to compress the video with QuickTime.

Launch the video across QuickTime
choose a file compression quality
compress the video with QuickTime
  • compress icon

    Step 1

    Launch iMovie on Mac, tap on the "Create New" button to add a video file.

  • compress icon

    Step 2

    Click on the "Import Media" button to add the video file and drag it onto the timeline.

  • compress icon

    Step 3

    Proceed to the "Share" button and select the "Export File" option. Change the Quality, Resolution, and Compress Speed to reduce the video size . Now click "Next" followed by "Save" to compress video with iMovie.

Launch iMovie on Mac
add the video file
compress and save

The easiest way to reduce video size on Mac

Launch the Video Compressor and add video file
Choose the compression percentage or file size
Start compression
  • compress icon

    Step 1: Launch the Video Compressor and add video file(s).

    Launch the Video Compressor of Wondershare UniConverter on Mac. Tab the + tab to add the video files or directly drag and drop the files.

  • compress icon

    Step 2: Choose the compression percentage or file size.

    You can compress the video size by reducing them to a percentage in terms of the original file size, just click the File Size drop-down options to select one. Or you can directly adjust the Bitrate to compress the video size: Click on the Settings icon to customize the Video Quality, Bitrate, Format, and Resolution.

  • compress icon

    Step 3: Start compression.

    Click the Start All button to reduce the video size. The video file(s) will be compressed in seconds.

UniConverter VS. Mac built-in Applications

Why do you need a third-party application to compress video

Application Import Format(Video) Output Format(Video) Batch Compression Quality of Output Video
UniConverter for Mac 50+ 50+ Up to 99% of original video
iMovie MOV, MP4, 3GP, AVI, M4V MP4, MOV, AVI, DV x Low, Medium, High, Best (ProRes), Custom
VLC 10+ 10+ x Medium
QuickTime MOV, MP4, M4V MOV x Medium

While Mac built-in applications are free and open-source, they support very limited video formats and batch compression is
not supported. That's why you need a powerful third-party video compressor for Mac like UniConverter.

How long does it take to compress a MOV video of 500MB[1280X720]

compress icon

According to the experimental data, UniConverter has the fastest video compression speed among these applications. The GPU Acceleration of UniConverter speeds up the process of compression, so users can quickly get a better result when compressing a video.

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UniConverter - Best Video Compressor for Mac

  • Compress videos for social media sharing Compress videos for social media sharing.
  • Compress video for Email Compress video for Email.
  • Batch compress videos/pictures quickly Batch compress videos/pictures quickly.
  • Compress DVDs Compress DVDs.
  • High-speed compression with GPU acceleration High-speed compression with GPU acceleration.

How to compress videos for Social Media on Mac

What you need to know before resizing videos for social media

Different social media channels support different maximum video file sizes for upload. You can see some highlighted social media platforms which support uploading videos in small sizes. So we have to reduce the video size for sharing according to the limits.

Platforms Supported Maximum Video File Size Aspect Ratio
YouTube 128GB 16:9
Vimeo 500 MB per week (basic plan users) 16:9
FaceBook 4GB (1.75 GB maximum in Sprout) 9:16(portrait), 2:3(Mobile renders)
Instagram (Feed Video) 4GB (*100MB maximum for Sprout direct publishing) 16:9(Landscape), 1:1(square), 4:5(vertical)
Twitter 512MB 16:9 (landscape/portrait), 1:1 (square)
TikTok 287.6MB 9:16(recommended), 1:1(with letterboxing)
LinkedIn 5GB 1:2.4 to 2.4:1
Pinterest 2GB 1:1 (square) or 2:3, 4:5 or 9:16 (vertical)
Whatsapp 16MB 4:3 (recommended)
Discord 8MB 16:9 (recommended)
Skype 300MB No limits
Tumblr 100MB No limits
Reddit 1GB No limits
Snapchat 2.5MB 9:16 (recommended)
Email 20MB for Outlook and Zoho; 25MB for Gmail and Yahoo No limits
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compress video icon
compress video icon

How to Compress Video for YouTube, Facebook, Instagram and Vimeo on Mac?

Solution:

  • compress video icon
    Step 1: Launch the Video Compressor of UniConverter on Mac PC.
    Click the + File tab to add or drag video file(s) for compression.
  • compress video on Mac
    Step 2: Select the Output Format as YouTube, Facebook or Instagram, or Vimeo from the Web Video section. Now click the File Size to choose the percentage of compression to reduce your video size. Or tab the Settings and slide the bubble to change the compression ratio. And then select the Bitrate form for your video.
  • compress video on Mac
    Step 3: Click the Start All button to start compressing your video(s) for YouTube, Facebook or Instagram, or Vimeo.
Launch the Video Compressor
Select the Output Format as YouTube, Facebook or Instagram, or Vimeo
start compressing your video

How to Compress Video for WhatsApp?

Solution:

  • compress video on Mac
    Step 1: Launch the Video Compressor of UniConverter on Mac PC.
    Click the + File tab to add or drag video file(s) for compression.
  • compress video on Mac
    Step 2: Select the Output Format that WhatsApp supports such as MP4 or MOV. Now click the File Size to choose a percentage that will reduce your video size to less than 16MB.
  • compress video on Mac
    Step 3: Click the Start All button to start compressing your video for WhatsApp.
 Launch the Video Compressor of UniConverter on Mac
Select the Output Format that WhatsApp supports such as MP4 or MOV
start compressing your video for WhatsApp

How to Compress Video for Discord?

Solution:

  • compress video on Mac
    Step 1: Launch the Video Compressor of UniConverter on Mac PC.
    Click the + File tab to add or drag video file(s) for compression.
  • compress video on Mac
    Step 2: Select the Output Format that Discord supports (MP4, WebM or MOV). Now click the File Size to choose a percentage that will reduce your video size to less than 8MB.
  • video compressor for Mac
    Step 3: Click the Start All button to start compressing your video for Discord.
Launch the Video Compressor of UniConverter on Mac
Select the Output Format that Discord supports
start compressing your video for Discord

How to Compress a Video for Email?

Solution:

  • video compressor for Mac
    Step 1: Launch the Video Compressor of UniConverter on Mac PC.
    Click the + File tab to add or drag video file(s) for compression.
  • video compressor for Mac
    Step 2: Select the Output Format that your Email supports. Now click the File Size to choose a percentage that will reduce your video size to less than 20MB(for Outlook and Zoho) or 25MB(for Gmail and Yahoo).
  • video compressor for Mac
    Step 3: Click the Start All button to compress video for Email.
Launch the Video Compressor of UniConverter on Mac
Select the Output Format that your Email supports
compress video for Email

How to Compress Video for Twitter?

Solution:

  • video compressor for Mac
    Step 1: Launch the Video Compressor of UniConverter on Mac PC.
    Click the + File tab to add or drag video file(s) for compression.
  • video compressor for Mac
    Step 2: Select the Output Format that Twitter supports. Now click the File Size to choose a percentage that will reduce your video size to less than 512MB.
  • video compressor for Mac icon
    Step 3: Click the Start All button to compress video for Twitter.

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