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Convert MKV to 3GP
Online & free tool to convert MKV files to 3GP

1) Input file

Choose source file(s) to convert:

0 of 5 files added (up to 1000 MB combined)

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) File URL

Choose file URL to convert:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) Cloud Service

Choose a cloud service provider:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.
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MKV

Matroska Video File

The Matroska video file format, .mkv, is an open source video file container which is part of the larger open source Matroska Multimedia Container which includes .mka (audio), .mks (subtitles), and .mk3D (stereoscopic video). It was first developed in 2002 and is today favored by many video authors because of the size of produced files. In 2010 the mkv format became the basis of the popular browser independent open format called WebM with several free video players providing playback support for video files encoded in .mkv. Microsoft Windows does not have native support for .mkv video files but there are plans to include native playback support in Microsoft's upcoming operating system Windows 10.
3GP

3GPP Multimedia File

The 3GP file format and its associated filename extension .3gp is an audio, video, and text container developed by the 3rd generation partnership project. The target market for the 3gp file format is 3G enabled UMTS mobile phones through associated UMTS multimedia services. Though mobile devices operating on high speed networks are the intended hardware associated with playing .3gp files, many PC codec packs exist which grant compatibility for .3gp playback. The format has a basic profile in which files of this format do not reference any external media sources and support for audio, video, and text is limited to a single track.

Trusted conversion quality

FreeFileConvert uses tuned encoding for MKV to 3GP conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.

Seamless workflow

Upload MKV files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized 3GP results on any device you rely on.

Batch support for teams

Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent 3GP audio with dependable progress tracking.

About MKV

How to open MKV files

VirtuldubMod
VLC player
MPlayer
Media Player Classic
Window Mediaplayer
Perian (OS X)
Quicktime
Xine
Zoomplayer

Technical details

Any video player that supports DirectShow parser filters can play .mkv files once the correct decoder filers for the video file are installed. Players such as VLC or Xine have native support for .mkv files which eliminates the need to install the DirectShow de…

Any video player that supports DirectShow parser filters can play .mkv files once the correct decoder filers for the video file are installed. Players such as VLC or Xine have native support for .mkv files which eliminates the need to install the DirectShow decoder filter onto the operating system. The .mkv file format is capable of supporting chapter points, subtitles, different audio streams, video, and well as metadata such as file descriptions, synopsis, cover art and more.

About 3GP

How to open 3GP files

Media Player Classic
VLC Player
3GP Player

Technical details

The 3gp format is standardized in the ETSI technical specification in which support for it is implied in IMS, MMS, PSS, and MBMS carrier services. The format is based upon the ISO/IEC 14496-12-MPEG-4 part 12 standard. As such, video streams in the 3gp format c…

The 3gp format is standardized in the ETSI technical specification in which support for it is implied in IMS, MMS, PSS, and MBMS carrier services. The format is based upon the ISO/IEC 14496-12-MPEG-4 part 12 standard. As such, video streams in the 3gp format can be encoded in mpeg-4 part 2 or mpeg-4 part 10. Audio streams can be encoded in AMR- narrow band, AMR-wide band, AAC-LC and others.

How to convert MKV to 3GP

STEP 1

Upload your video file in the MKV format from your device, Dropbox, or Google Drive.

STEP 2

Select 3GP as the output format and click Convert. Adjust optional settings if needed.

STEP 3

Download the converted video file. Each file stays available for up to 5 downloads.

More MKV and 3GP options

Convert other files to 3GP

Explore popular source formats that convert beautifully into 3GP.

Convert MKV to other formats

Need a different output? These conversions transform MKV into other widely used formats.

Your data, our priority

  • 256-bit SSL encrypted uploads and downloads
  • Automatic file deletion shortly after conversion completes
  • Reliable global infrastructure for consistent performance