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by Brian Fisher • Feb 28,2020 • Proven solutions

Why Do We Need MP4 Codec?

Not all video formats can play on Mac devices. You may find that the media player on your Mac gives an error whenever you play an MP4 file. To solve this, you need a codec. An MP4 codec enables the media players such as QuickTime to play files that it did not support such as MP4 files. Although QuickTime on Mac devices supports MP4 files, it only contains some of the codecs, which means that if your file has a codec that is not supported, it will not play. Therefore, you should install the required codec or convert the files to a format support by the media player.

Part 1. Best MP4 Codec to Play MP4 Videos on Mac

UniConverter is the best MP4 codec that can enable playing of MP4 videos on Mac devices. The converter is a tool used to convert videos and audio from one format to another. In this case, it can convert the MP4 files on your Mac device to a format that is recognized by the media player. Other than converting, the software can also be used for editing videos, burning DVDs and downloading audio and video files from various sharing sites.

Video Converter - UniConverter

Get the Best MP4 Codec:

  • Convert MP4 videos to Mac compatible format with only three simple steps.
  • Convert MP4 videos to many more video/audio formats as you need.
  • Download online videos from various video sharing websites.
  • Burn MP4 or any to DVD, copy DVD file as a backup.
  • Edit your MP4 videos files before conversion.
  • Preserve the original video quality after conversion.

Simple Steps to Convert MP4 Files on Mac with the Best MP4 Codec

Step 1. Importing MP4 files

You can convert audio, DVD and video files. To place the files in the converter, you can import them in two ways. One method is by dragging and dropping them to the converter’s window. You may also go to the main menu and select 'Add Files' to achieve this.

Step 2. Set output format

The program supports more than 150 formats. Choose the one compatible with the media player in your Mac. You will find the formats grouped into six categories. Here, the recommended format is 'MOV'.

Step 3. Start Conversion

The conversion begins when you click the 'Convert' button. Once the conversion is complete, a prompt message appears asking you if to open the folder. If your output was for devices such as iPad, iPod, iPhone or Apple TV, they are automatically added to the iTunes library. The converted format can now play on your Mac device while retaining the original quality.

Part 2. Recommend Another Three MP4 Codec Pack for Mac

#1. Perian

Perian is a QuickTime component that adds codec to QuickTime to enable it play videos and audio that it is not currently supporting such as MP4. By installing perian, your device can play a wide variety of formats including AVI, DivX, MKV, MP4 and FLV.

Pros:
Supports many media files.
Cons:
It is no longer being developed.
It only works with earlier versions of QuickTime such as 7.6.6 and not 10.

#2. Pavtube iMedia Converter for Mac

Pavtube iMedia Converter for Mac converts videos to a format that can be played on Mac. It can convert the MP4 videos to a supported format such as Quicktime.mov. The converter also supports the editing of the video before conversion.

Pros:
The converter supports various OS X systems from 10.5 Leopard to 10.11 El Capitan.
Other than conversion, it is a blue ray and DVD ripper.
It preserves the original quality of the videos.
Cons:
It does not convert M4V movies that have been purchased on iTunes to any other format.

#3. Aiseesoft MP4 Converter for Mac

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Aiseesoft MP4 converter converts video and audio to and from MP4 on Mac devices. It converts formats such as AVI, MXF, WMV, MP4 and FLV to MP4, DivX, MKV and WMV. It also provides editing functions to help in personalizing the video files. The converted files can then be played on media players, tablets, smartphones and other portable MP4 players.

Pros:
It has a user-friendly interface that can be used even by inexperienced users.
It provides many options for converting files and it has fast conversions.
Cons:
The editing options are basic and may not impress advanced users.
The trial version only converts five minutes of long clips and half the clip of short clips.


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Products

UniConverter

Converting Video/Audio UniConverter supports various formats. Almost all popular videos and audio formats are supported, which includes: AVI, MP4, MPG, MPEG, WMV, ASF, RM, RMVB, M4V, DPG, VOB, 3GP for videos and MP3, M4A, AC3, AAC, WMA, WAV, OGG, APE, MKA, AU for audios.
Burn to DVD Users can burn their video files into DVD easily with UniConverter. You can download your favorite online video files and then directly burn them to DVD so that you can enjoy them on any DVD player or big-screen TV.
Edit Videos You can edit your video before conversion. You can feel free to crop,trim and rotate your videos. Adding watermark and subtitles to your videos are also possible.
Downloading Online Video UniConverter allows users to download video files with different formats. You can download the videos you like from any popular online websites including YouTube, Break, Facebook, etc for playback on various mobile devices.
Q: What is K-Lite Codec Pack? How can I watch videos on Mac without K-Lite Codec Pack?
K-Lite Codec Pack is a free package of media player codecs. It can play almost all the movies which you download from the internet. Its supported formats include AVI, WMV, MP4, MOV, MKV, FLV, MTS, 3GP and more so that you can play virtually any video files with it. However, K-Lite Codec Pack only works in Windows system and there is not yet a Mac Version of this software. If you are looking for something like K-Lite Codec Pack Mac that does more or less the same thing, just go on reading.
Download

Best Alternative to K-Lite Codec Pack Mac - Play Video on Mac in any Format

Aimersoft Video Converter Ultimate is one of best alternative to K-Lite Codec Pack for Mac. With it, you can play any video/audio files, convert them to almost all popular formats and also touch up the videos without any hassle. Well Compatible with Mac OS (macOS Mojave supported), Aimersoft Video Converter for Mac is also an online video downloader. With the built-in browser, you can search and download directly the videos you like with fast speed and high quality.

If you are looking for the alternative of K-Lite Codec Pack for Windows, why not have a try on Aimersoft Video Converter Ultimate which is fully compatible with Windows (Windows 10).

Aimersoft Video Converter Ultimate

Best Alternative to K-Lite Codec Pack Mac

  • Play video on Mac without format issues, supporting MP4, MOV, MPEG, MKV, WMV, AVI and other 500+ formats.
  • Convert videos in any formats to MOV or MP4 (most compatible formats for Mac).
  • Batch converstion is supported.
  • Download videos from 1000 online sites, including YouTube, Vimeo, Vevo, Dailymotion and more.
  • Built-in video editing tool to customize your video.
  • Do more with all-in-one toolbox.
Available:

Tutorial 1. How to Play Video on Mac in any Formats?

This is a good choice when you can't play video on Mac with format issue, and don't know to change the video format. Please download and install Aimersoft Video Converter for Mac on your Mac. Follow the simple steps below to have a try on the equivalence of K-Lite Codec Pack for Mac.

01 Add video file to Aimersoft Video Converter Ultimate

Open Aimersoft Video Converter Ultimate on your Mac. Directly drag and drop the movies or videos into the window of this program. Or you can click on the Add Files to browse videos on your Mac. There are more than 500 video formats supported.

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02 Click the Play icon

You can see your videos have been displayed in the program. Put the mouse over the video thumbnail, there will be a Play icon over it. Now click it.

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03 Playing video on Mac

Now your video is playing! It also provides with 2 options, which you can maximize the playing window on your Mac, or take screenshots of the video.

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Tutorial 2. How to Convert Videos to MOV/MP4 on Mac?

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This solution will let you convert videos to macOS compatible formats. You are suggested to convert the videos to MP4 or MOV formats, which can be further used on a Mac. Now let's see how to do it in 3 simple steps.

01 Add videos to Aimersoft Video Converter Mac

Launch Aimersoft Video Converter Ultimate on Mac. Add the target videos by dragging and dropping. Multiple videos can be added and converted at one time.

Optional Edit videos

You can touch up the videos to create personalized video visual experience with this K-Lite Codec Pack for Mac. There are 3 editing tabs below each video thumbnail. Here you can crop, rotate, trim video, and add subtitle, watermark and others to the video.

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  • Adjust: Adjust the frame size, rotate the video, and split the videos into small clips.
  • Effects: Append special artistic effects to the video.
  • Watermarks: Supports adding image watermarks as well as text watermarks.
  • Subtitles: Load subtitles to make the video more understandable. The font of the subtitles is editable.

02 Choose an output format

Click Convert all tasks to to get the output formats. Here you can choose MOV or MP4. The chosen format and resolution will be applied to all of the added videos.

03 Convert video with K-Lite Codec Pack Mac alternative

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Turn on High Speed Conversion to convert video at 90X faster speed. Click the Convert Allbutton to start the conversion. Later, you can check the converted videos on Converted tab, or from the output folder on your Mac.