5KPlayer > Video Music Player > MP4 Player

Download Free MP4 Player to Play MP4 Files on Windows 10/Mac

A free MP4 player nowadays is easy to find but a MP4 player forged from aced all-codec handler and high-bitrates processer that works on both Windows (10) and Mac platform can be a bit trickier to get. You haven't the time to test out all those MP4 players and you don't have to, since we've already done that for you and reached at the final verdict – 5KPlayer, withstanding all-round tests by working seamlessly on both Windows 10 and Mac OS Sierra, here below you'll find MP4 player free download available, which helps you play MP4 videos H.264 H.265 VP8/9 in SD, 720p, 1080p and 4K/5K/8K UHD quality!

Best MP4 Player Free Download – 5KPlayer

Your second-to-none free MP4 player choice for both Windows (10) and Mac (os Sierra) has revealed itself here below to not just play MP4 videos but free stream, download and convert MP4 files locally. 100% clean and ads-free. Check out 5KPlayer below.

Best free MP4 player

How to Sync Audio and Subtitles in MP4 Video with 5KPlayer

Step 1: Right-click on 5KPlayer's playback window, and then click on Synchronization.

Step 2:The Track Synchronization window will open, where you can fix subtitles or audio accordingly.

Step 3:To fix audio and video out of sync, you can either use the slider below the Audio/Video or increment or decrement by clicking the up and down arrow.

Note:The same solution is adaptable to fix subtitle synchronization problem as well.

MP4 player sync subtitle

Note: In addition to free play MP4 files, this all-around powerful video music player stands out as one of the best media players. It is capable of playing almost all kinds of media files, including free playing music in MP3, AAC, FLAC, etc, various video file types like MKV, AVCHD, AVI, WMV, MOV, HEVC and more, regular/copy protected DVDs, etc. Plus, 5KPlayer also does well in free downloading videos from 300+ online sites, like YouTube, Dailymotion and Vimeo. And you can also utilize Airplay feature to share media files from Mac/PC to Apple TV.

Everything You Want to Know About MP4 is Here

Part 1: What is MP4 Format?

As is mentioned above, MP4 is briefly a file format that can be played by a MP4 player like 5KPlayer, and it is also known as MPEG-4 Part 14 (formally ISO/IEC 14496-14:2003), a digital multimedia container format specified as a part of MPEG-4, an instance of the more general ISO/IEC 14496-12:2004 (MPEG-4 Part 12: ISO base media file format), please check out what is MP4 format in-depth review if you intend to dig more.

Part 2: Table of MP4 File Format Versions

Type Release date Standard Description
1 2001 ISO/IEC 14496-1:2001 MPEG-4 Part 1 (Systems), First edition
2 2003 ISO/IEC 14496-14:2003 MPEG-4 Part 14 (MP4 file format), Second edition

MPEG-4 Part 14 or MP4 is especially for audio and video compression-decompression, and also allows a wide range of digital data streams (audios, videos, images and subtitles) to be encoded for easy transporting and playing with a MP4 media player. The common MP4 file contains AVC (H.264) /MPEG-4(Part 2) video, AAC audio and subtitles, making MP4 the most popular media file format for people to enjoy videos and movies on any device.

.mp4 is the only official filename extension for MPEG-4 Part 14 files though, there are also other common MP4 extensions like M4V (for video), AAC (for AAC encoded audio files), 3GP (for mobile phones) and M4P (for MP4 files "protected" with Apple's DRM system). Worth mentioning, MP4, M4A and M4V are all variations of the same file type in the long run though they are slightly different from each other.

Part 3: MP4 vs. M4A
How to distinguish MP4 and M4A? Put simply, .m4a is another commonly used audio file extension of MPEG-4 Part 14. M4A files are simply MP4 files that contain only an audio stream (usually AAC encoded), whereas MP4 contains audio and video streams. The M4A extension was invented by Apple to differentiate audio-only MP4 files from video MP4 files, which means nothing different except the extension. There is no need to convert between two formats, you can play M4A files with a MP4 file player and play MP4 with a M4A player freely.

Part 4: MP4 vs. M4V
To some extent, M4V files are MP4 files as M4V is the derivation of MP4 video format. But they two come with subtle difference indeed. M4V video files are protected by Apple's FairPlay DRM copy protection to restrict copying and piracy that only for Apple devices like iPhone, iPad, iPod, etc, while MP4 is developed by Moving Picture Experts Group for most media players and devices including Apple devices and Android. M4V allows you to store chapter information but MP4 doesn't. And MP4 is encoded with MPEG-4/H.264 (AAC) codec and M4V is H.264 (AAC/AC3) codec, which fails you to play M4V files on iPhone or iPad if you change the extension of a file containing AC3 audio from M4V to MP4.

Part 5: MP4 as a Container Format
As a multimedia container format, MP4 can be used to store different kinds of file formats like AVI and MPG, and hold other data like subtitles and still images. Besides, MP4 can be encoded with different codecs, most commonly H.264/H.265. Because of the two reasons, not all the so-called MP4 media player could play MP4 video files successfully. For instance, Windows Media Player can normally play H.264 files; KMPlayer lacks the support for both H.264 and H.265 videos, playing MP4 on iPhone 7 is only available for MP4 video with H.264 codec or MPEG-codec, and so on.

Popular on the Internet and supported on a range of consumer electronic devices, including iPhone, iPad and more, MP4 provides high-quality, highly compressed digital video for you to download, play and stream. What you should do is to download MP4 player 5KPlayer with download, playback and AirPlay function to collect all the MP4 files and enjoy freely.

Learn More

  • Video Music Player* Play DVDs and videos in H.265/264 FLV MKV WMV etc.* Play internet radio, MP3, FLAC, AAC music and more.
  • YouTube Downloader* Download video/music from YouTube.* Convert YouTube to MP3/AAC music.
  • AirPlay Sender & Receiver * AirPlay from iPhone, iPad, iPod to Mac, PC, Apple TV.* AirPlay MP4 M4V MOV Videos MP3 AAC Music.

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