Best Free File Compression Software For Mac

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by Christine Smith • 2020-10-28 17:37:42 • Proven solutions

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'How do I reduce the size of a video on Mac?'

The need for video compression arises with the development of 4K video and HD video technology. Smaller sized videos are easy to manage, share over email, internet, and other means, and create additional storage space for smartphones and computers. On your Mac system, whatever might be the storage, you will frequently face memory issues. For creating more space on your Mac, it's necessary to compress video on Mac using professional tools. The following part of the article discusses the top 10 video compressors for Mac free online and desktop with pros and cons.

Part 1. The easiest way to compress videos on Mac in batch and no quality loss.

There are myriad options available when it comes to video compression tools and one of the best in the list of Wondershare UniConverter (originally Wondershare Video Converter Ultimate). It is a complete video toolbox that performs an array of functions like video conversion, video compression, video transfer, DVD burning, video editing, and video downloading. The program supports over 1000 formats for conversion and also facilitates device-specific format conversion. This video compressor app Mac compresses video by changing its size, bit rate, resolution, and frame rate.

Wondershare UniConverter - The best video compressor for Mac (Catalina included)

  • Compress video size automatically or manually by adjusting video parameters for Mac.
  • Convert videos in batch on Mac in 1000+ formats, including MP4, MOV, WMV, FLV, AVI, MPG, etc.
  • Reduce video size by customizing video resolution, file size, bitrate, quality, format without losing quality.
  • Edit, enhance, and personalize your video files before compression.
  • Burn video to playable DVD with attractive free DVD templates.
  • Versatile toolbox combines video metadata fix, GIF maker, DVD burner, and screen recorder.
  • Supported OS: Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6, Windows 10/8/7/XP/Vista.
Best Free File Compression Software For Mac
Security Verified, 5,942,222 people have downloaded it.

Steps to compress videos on Mac in batch and without losing quality:

Step 1 Launch the best video compressor for Mac and add files.

After downloading and installing Wondershare UniConverter on your Mac, open the program. From the Video Compressor tab, click the Document icon to add files. Then, a file explorer window will open from where you need to browse and add desired video files from your Mac. Multiple files can be added here.

Step 2 Settings for batch compression.

If you want to compress all videos by one click, click the Reduce File Size button to choose the size that you need to compress.

Tips: The step above can change all added files settings for batch compression, if you want to customize the video compression settings separately, click the Setting icon for each video file and you'll get a small window to reduce video size. From where, you can compress the video size by changing file size, video resolution, bitrate, output format, and more others.

Step 3 Compress videos on Mac.

Now you can see the change in video size. If you're satisfied with the output video size, go to the File Location tab, and select the location you want to save the compressed video file on Mac. Finally, hit Start All to start compressing the video on Mac.

If you want to compress a video separately with much easier steps, you can move to How to Compress A Video Within 3 Steps on Mac >> to learn more.

Part 2. Top 4 free video compressors for Mac.

Besides professional software, there are many free video compressors for Mac available as well. These free tools are pocket-friendly and support decent video compression features. Below recommended are some free video compression tools for Mac.

1. Mac Finder

If you are looking for a simple, easy, and straightforward solution to compress your video files, Mac Finder is a good choice. This built-in Mac tool is majorly used for accessing different programs of Mac, but there is a lot more that can be done using this app, including video compression. Using Mac Finder, you can change the bitrate, frame rate, resolution, codec, and the quality to shrink the video size. Mac Finder is a fast video compression method that also allows video customization and other functions. It has to be noted here that Mac finder allows converting and compressing only MOV files.

Steps on how to compress video with Mac finder

Step 1: Open the Mac Finder app on your Mac system. You can either click on the app icon present on the desktop to launch a new window or use the Command tab and then Command-N to open it.

Step 2: Next, you need to locate the video files that you want to compress. Either enter the file name and use the search option or browse through the files in different folders using the tabs present on the left column.

Step 3: Once you have found the desired files, you need to open the menu options by hitting Control + click on the file. From the available options, select Encode selected video file.

Step 4: A new Encode Media window will open to set the output video options. Change the file parameters from the given choices in their drop-down menu. Change the resolution or select from converting to Apple ProRes or audio-only format. Here you also need to choose the destination folder of the file. If you intend to keep the same folder, check the same as the source file box. After you are done with all settings, click Continue to proceed.

Step 5: Finally, click OK to start the file conversion and compression process. Depending on the file size, pixels, quality, audio rate, bitrate, and codec, the speed and rate of the process will vary. Once the compression is complete, you will be notified of the same.

2. Handbrake

Handbrake is another commonly used tool that allows performing an array of functions, including video compression. It is a cross-platform program that works on Mac, Windows, and Linux systems. Handbrake is a free and open-source program that facilitates video compression by either selecting the video presets or changing the file parameters manually.

Steps to compress video Mac handbrake

Step 1: Download, install and launch a video compressor Mac handbrake on your system. Click the Source button on the top-right corner to browse and add the desired video files.

Step 2: Once the file is added to the program interface, click Browse under the Destination tab, select the output file name and the location where you want to save the file. Click Save to confirm.

Step 3: At the Output Settings: option select the format of the output file. Next, select the video codec from the given options. From the Presets Drawer, choose the High Profile preset. Alternatively, you can also open it from the top menu bar by clicking Window> Presets Drawer. Next, select the Frame rate, average bitrate, and other parameters.

Step 4: In order to change the resolution or the frame size of the video, click Picture Settings that will open a new dialog box.

Step 5: Once all settings are done, click the Start the button on the top menu bar that will start the video compression process. Once the process is complete, you will be notified of the same.

3. QuickTime Player

QuickTime Player is a popularly used app on Mac, and in addition to viewing the videos, the program also supports shrinking them. This free video compression method is simple and easy to use.

Steps to compress video using QuickTime Player

Step 1: Open QuickTime Player of QuickTime Pro app on your Mac system. If it is already not present, you can download and install the same.

Step 2: Open the video that you want to compress on your QuickTime Player. Click the File Menu from the top bar and select the Share option.

Step 3: A new dialog box will open from where select the Email tab. At the Name option, select the desired name of the output file. Under the size: tab, select the desired option from the given options. A summary of the output video on the dialog box will appear showing FPS, compression codec, audio compression type, and others. The estimated post-conversion size of the video will also be shown.

Step 4: Once all settings are done, and you are fine with the same, click Share to start the process. A progress bar will also appear.

Step 5: Once the video is successfully exported in QuickTime Player, Mac Mail will automatically open as an Email option was selected. The converted video will be embedded in the email message body. To extract the video as a usable file, you can either drag and drop it from your email to your desired location on Mac or can choose the file and select Save Attachment to store it on your Mac.

4. iMovie

iMovie is a popularly used video editing tool for Mac and iOS devices. The program also facilitates shrinking your videos quickly and straightforwardly. This app is included for free in all your Mac systems and thus proves to be a free compression tool.

Steps to compress video Mac iMovie

Step 1: Launch the iMovie app on your Mac system. Search for Projects/Library menu and click + button. Next, select the Movie option and then select the desired theme or No Theme option. Give a name to your file.

Step 2: To add the video that you want to compress, click the downward-facing arrow on the upper left-hand corner. Alternatively, you can also hit the Import Media button and then browse and add the desired files.

Step 3: Next, to compress the added video, click the box with the arrow sticking out of it on the top-right –hand side corner and select file from the options. Alternatively, you can also use the menu bar by clicking the File > Share > File option. Now select the settings for the video to shrink the file size, lower the quality and the resolution. Click Next to move ahead.

Step 4: Give the desired file name and choose the location where you want to save the compressed file. Click Save. The added video will be compressed and saved at the mentioned Mac location.

Part 3. 5 online video compressors for Mac.

If you occasionally need to compress videos and do not want to download or install software on your Mac, online tool proves to be a good alternative. The online programs are simple, need no installation, can work from your browser directly, and are mostly free to use. A roundup of top video compressor Mac online is listed below to help you make a choice.

1.Clideo Online Video Compressor


Clideo Online Video Compressor is an online tool that facilitates video compression by one-click. A maximum of up to 500MB file size can be uploaded to the program interface. In addition to Mac, the converted and compressed file can also be saved on online storage services like Dropbox or Google Drive.

Steps to Compress Video

● Step 1: Launch the website on your Mac. Click Choose file to add videos from your Mac. You can also add the file URL for conversion.

● Step 2: Wait a few moments while the tool is setting up the necessary parameters for the video.

● Step 3: Watch the preview to make sure everything is fine. If it's so, download the video, otherwise, go back to editing.

2. Ezgif


This simple to use online video resize is free and facilitates compressing an array of video formats including WebM, MOV, FLV, MP4, and others. You can either add the videos from your Mac or even paste its URL for compression purposes.

Steps to compress video:

● Step 1: Open on your Mac browser. Click Choose file to browse and add videos from your system. You can also paste the video URL if needed.

● Step 2: Click Upload video! Once the video is successfully uploaded, a new window will open. Select the new width, height, and percentage of the video. Also, select an output format and encoding option from the drop-down menu.

● Step 3: Finally, click the Resize Video button to start the video compression process.

The link for uploading a compressed video will appear on the software interface itself.

3. CompressVideo


CompressVideo is another commonly used online video compressor for Mac. It allows reducing the file size of AVI, MP4, WMV, MKV, and other file formats while maintaining decent quality. The program helps to shrink file size by reducing its bitrate and scaling its width. The program is quick and features a simple interface. A maximum of 150MB of files can be uploaded to the program.

Steps to compress video:

● Step 1: Open on your Mac browser.

● Step 2: Click Browse to search and add videos from your system.

● Step 3: Select to reduce video width from options on the drop-down menu. Click Compress Video, and the process of file uploading and compression will start.

4. Clipchamp

Clipchamp is a commonly used online video shrinker Mac that is easy to use and comes with an array of features. The program supports adding videos up to 20GB size for compression. There are many presets available which automatically resizes files for social media, web, and other use. The online converter supports an array of file formats and resolutions, and the program never has access to our videos, thus maintaining your privacy. Batch processing is also supported.


Steps to compress video

● Step 1: Launch Clipchamp on your Mac system. Import the video from your Mac that you want to resize.

● Step 2: Select the Output settings that lead to file size reduction.

● Step 3: Hit Start to begin the compression process.

Once the file is resized, you can save it or also share it as needed.

5. Videosmaller


VideoSmaller is another free to use video size compressor Mac that allows shrinking different video formats in decent quality output. A maximum of 500MB file size can be uploaded to the interface for video compression. The tool also has an option to use low compression levels and shrinks video by reducing the width.

Steps to compress video:

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● Step 1: Run on your Mac browser. Hit Browse to search and import videos to be compressed.

● Step 2: From the drop-down menu, select the file width to resize it. Also, it enables users to use a low compression level if needed. There is also an option to remove the audio from the video.

● Step 3: Click Upload Video. The program will start uploading the video, and the file compression process will begin.

On process completion, the compressed files can be downloaded from the interface.

Part 4. External tips for Mac video compression settings.

Generally, video shrinking or compression means getting rid of the unwanted or unnecessary part of your video to reduce its size. The quality of the original video is considerably affected by reducing its size. So if you are looking for ways to shrink your MP4 video size without affecting its quality, listed below are some useful tips.

● Tip 1: Compressing your videos to smaller-size formats is an excellent way to maintain video quality while reducing its size. Some recommended formats are HEVC H.265, H.264, M4V, and MOV.

● Tip 2: Another way to maintain video quality during compression is to adjust the slide bar of LQ-HQ. You can also opt for Use High-Quality Engine option in the advanced setting area.

● Tip 3: Compared to the default video, lower the video resolution and its bitrate by 20-50%. A smaller sized video has a lower bit rate.

Wondershare UniConverter is the best video compressor for Mac, as it not only provides a faster speed and better quality but also gives more related functions such as video editing. Enjoy compressing video size on Mac without any limitation using Wondershare UniConverter.

Audio compression is the process of compressing audio files to make audio size smaller, which can help users save more space in smartphone, computer or other storage devices. It also makes streaming audio file online easier due to its small size. Therefore, learning to use an audio compression tool is really helpful for us in audio entertainment. As we all know, there are different factors that are related to the size of an audio file. And how to compress audio according to these factors may annoys you. To help you get away from the agony, here we will show you several free ways to compress audio on Mac and Windows.

Factors related to audio file size

Before we start shrinking audio files, we need to learn these factors related to audio file size, which will help us to find a quick way when shrinking audio file size with an audio compression tool. There are different factors that are related to audio file size, including:

Codec: It is the way that an audio file is compressed. This determines how small the size of the audio file is.

Bit rate: It is the quality of an audio file. Higher bit rate means better quality. However, this also means a bigger size. So if you want to compress audio file, one way is to lower the bit rate.

Channel: This factor determines how audio travels from the source to the destination. For instance, a stereo source has two channels, while a mono source only has one channel.

Sample rate: This refers to the number of samples of audios carried every second. Lower sample rate decreases size. For example, 22.05 kHz is popularly used for mp3 files.

How to compress audio file?

Below is a ranked listof the top 5 free audio compression tools for Mac/Windows, and you will find the best one for you to complete audio compression task.

Top 1: Pavtube Video Converter Ultimate ( Mac version: Pavtube iMedia Converter for Mac)

As the powerful audio compressor software, Pavtube Video Converter Ultimate can quickly compress audio in whatever audio formats to smaller file size without quality loss on Windows. It can compress MP3, WAV, FLAC, WMA, M4A, AIFF, PCM, OGG, AAC, AC3,etc. to smaller file size without change the audio format. Futhermore, It also can compress audio as well as convert audio to any other audio format like compress WAV to MP3, compress FLAC to MP3.

Best free file archiver for mac
  • Compress audio files by adjusting the resolution, bit rate, frame rate and more patermeters.
  • Support almost audio formats, such as M4A, WMA, WAV, MP3, MP2, AU, FLAC, MKA, AAC, OGG, Aiff, Ra, Ram, DTS, etc.
  • Extract audio from video files.
  • Convert audio/video files to various formats as you need.
  • Allow you to extract audio files from commercial Blu-ray/ DVD discs.
  • A bulit-in video/ audio editor.
  • Support batch compression.
  • Regular update and fully compatible with the newest operating system.

Step-by-step Guide to Compress Audio Files with Pavtube Video Converter Ultimate

Step 1: Add audio files to the audio compressor

Click 'File'>'Add Video/Audio' to add the audio files that you want to compress.

Step 2: Choose different compression methods

Method 1: Choose a codec with higher audio compression ratio. This method is very effective, but will decrease audio quality apparently. In most case, MP3 is a audio format that stores compressed audio data with good quality and small file size. Plus, with same audio quality, AAC file size is smaller than MP3. Just go to 'Format' bar>'Common Audio' to choose 'MP3 - MPEG Layer 3 Adio (*.mp3), or 'AAC-Advanced Audio Coding(*.aac)'.

Method 2: If you don't want to change video format, you can change the audio settings by clicking 'Setting'. Generally, the lower bit rate will cause the smaller audio size. Take MP3 as an example, an MP3 file with 128kbps bit rate can save nearly 1 MB to 5MB song without any decrease in quality when downscale the audio bit rate to around 90 kbps.

Step 3. Start to compress audio files

Hit the right-bottom 'Convert' button to start audio compression process. You'll get the compressed audio after a while.

Besides Pavtube Video Converter Ultimate, there are many other free audio compression tools we can easily download from Internet. Although they are less functional than Pavtube, but these tools can also help you compress audio file smoothly.

Top 2: Audacity

Audacity is a popular free tool used for recording and editing sounds. It can also be used for compressing audio, here are the simple steps:

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1. Download and install Audacity.

2. Click Edit, Open, choose the file to compress and click OK.

3. Click Project Rate and choose a lower value.

4. Click the drop down arrow next to name of the audio file and select Split Stereo Track, select Mono by clicking on the drop down next to the two tracks.

5. Select flat parts on the waveform and hit the delete key to remove silences on the file.

6. Click Edit, Select and All.

7. Click Effects, Change Tempo and move slider to the right. Increasing tempo lowers the size of the file.

8. Click File and select Export as mp3.

Top 3: Apowersoft Free Audio Converter

This is another program that helps us to reduce audio file size. This is a browser-based tool so you need to be connected to the Internet. Go to its homepage, browse on the file that you wish to compress and choose the appropriate settings. Choose the right settings to lower the size without sacrificing the quality.

Top 4: Switch Sound File Converter

Another free audio compressor is called Switch Sound File Converter. It supports batch conversions and whole folder imports. And its interface is intuitive, you can quickly find the option you want.


Top 5: Zamzar

Zamzar is online audio converter service that supports most common music and audio formats. You can also use it to change video codec to shrink video size.

Best Free File Archiver For Mac

Input Formats: 3GA, AAC, AC3, AIFF, AIFC, CAF, FLAC, M4A, M4B, M4R, MIDI, MP3, OGA, OGG, RA, RAM, WAV, and WMA

Output Formats: AAC, AC3, FLAC, M4A, M4R, MP3, OGG, WAV, and WMA

I found the biggest disadvantage of Zamzar is their 50 MB limit for source files. While many audio files are smaller than this, some low compression formats can exceed this small limit.

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Compressing audio files can decrease their size, thus making them easier to stream online. You need to choose the right settings so you can still enjoy quality sounds. While the top 5 free audio compression tools are listed above, you can freely select one to complete your audio compression task.