MKV
→
3GP

Convert MKV to 3GP Online

Convert MKV to 3GP online. Start with free daily conversions, no install, no watermarks, and visible job status.

MKV to 3GP Converter

Upload your MKV file to convert it to 3GP format

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How to Convert MKV to 3GP

Follow these simple steps

1

Step 1: Upload Your File

Upload your MKV file by dragging and dropping or clicking to browse

2

Step 2: Select Output Format

3GP is automatically selected as the output format

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Step 3: Start Conversion

Click the Convert button to start the conversion

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Step 4: Download Result

Download your converted 3GP file when ready

Convert MKV to 3GP - Complete Guide

Converting MKV to 3GP stays in the video file family but changes the traits that decide size, quality, transparency, editability, or device support. MKV is a flexible video container format often used for high-quality video, subtitles, and multi-track media. 3GP is a video format. Mobile video. Below is what actually changes in a MKV→3GP conversion, what is preserved, and when 3GP is the better choice than keeping MKV.

What changes when you convert MKV to 3GP

  • The video is re-encoded into the 3GP format. Because re-encoding is not free, start from the highest-quality source you have and keep quality settings high.
  • Expect a smaller output file: 3GP is typically more space-efficient than MKV for the same content.

About the MKV format

MKV (Matroska Video) is a flexible container format that can hold multiple video, audio, and subtitle tracks. Our converter extracts and transforms MKV content.

  • Full name: Matroska Video
  • Developer: Matroska.org
  • Compression: Various (H.264, H.265, VP9)
  • Opens with: VLC, Plex, MKVToolNix

Where MKV is strong: stores multiple audio, video, and subtitle tracks; flexible, high-quality container.

Typical MKV uses: high-quality video libraries, multi-track and subtitled video.

About the 3GP format

3GP is a video format designed for mobile phones. It offers small file sizes but limited quality. Our converter transforms 3GP to higher quality formats.

  • Full name: 3rd Generation Partnership Project
  • Developer: 3GPP
  • Compression: H.263/MPEG-4/H.264 (Video)
  • Opens with: VLC, QuickTime, FFmpeg

Where 3GP is strong: small files designed for 3G mobile networks; low bandwidth and storage requirements; widely recorded by older GSM phones.

Typical 3GP uses: legacy mobile phone recordings, MMS video clips, low-bandwidth mobile sharing.

What 3GP keeps

  • 3GP adds: small files designed for 3G mobile networks.

Things to watch out for

  • One 3GP limitation to keep in mind: low resolution and quality.

When to convert MKV to 3GP

  • Convert MKV to 3GP for legacy mobile phone recordings.
  • Convert MKV to 3GP for MMS video clips.
  • Convert MKV to 3GP for low-bandwidth mobile sharing.

MKV vs 3GP — format comparison

A quick side-by-side of the structural differences between MKV and 3GP, so you can confirm this is the right conversion for your file:

AttributeMKV3GP
TypeVideo fileVideo file
CompressionFlexible (lossy or lossless)Lossy
Web-friendlyNoNo
Typical file sizeLargeSmall
Best forhigh-quality video librarieslegacy mobile phone recordings

Privacy & Security

Files are handled for the conversion you request. Uploads and downloads use HTTPS/TLS, and temporary files are cleared after the processing and deletion window.

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Need the opposite conversion?

Convert 3GP to MKV

Other MKV Conversions

More formats you can convert MKV to

Convert MKV to MP4Convert MKV to WEBMConvert MKV to MOVConvert MKV to AVIConvert MKV to MP3Convert MKV to FLVConvert MKV to WMVConvert MKV to MPEGConvert MKV to MPGConvert MKV to TSConvert MKV to OGVConvert MKV to 3G2Convert MKV to ASFConvert MKV to M4VConvert MKV to AACConvert MKV to WAVConvert MKV to OGGConvert MKV to FLACConvert MKV to M4AConvert MKV to WMAConvert MKV to AIFFConvert MKV to OPUS
View all MKV conversions →

Convert to 3GP

Other formats you can convert to 3GP

Convert MP4 to 3GPConvert MOV to 3GPConvert WEBM to 3GPConvert AVI to 3GPConvert M4V to 3GPConvert FLV to 3GPConvert WMV to 3GPConvert 3G2 to 3GPConvert MPEG to 3GPConvert MPG to 3GPConvert TS to 3GPConvert MTS to 3GPConvert M2TS to 3GPConvert VOB to 3GPConvert OGV to 3GPConvert ASF to 3GP
View all 3GP conversions →

Popular Related Conversions

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MKV to 3GP FAQ

Converting MKV to 3GP preserves the content faithfully; output also depends on the source file and any settings you choose.
Upload your MKV file, confirm 3GP as the output format, and click Convert. Job status is shown while the file is processed, then you can download the 3GP result.
Yes. You can start with free daily conversions, with no signup required for your first jobs and no watermarks on the output. Accounts and paid plans are available for higher-volume work.
No. The MKV to 3GP conversion runs in your browser on any device — Windows, Mac, Linux, iOS, or Android — with uploads and downloads over HTTPS.
MKV is the Matroska multimedia container. It can contain video, audio, subtitles, and chapters in a single file.
MP4 is more widely compatible with devices, TVs, and media players than MKV.
When converting to formats that support subtitles, they can be preserved or burned into the video.
Yes! Our converter lets you choose which audio track to include in the converted file.
3GP (3rd Generation Partnership Project) is a video file format. 3GP files can be played with various video players and media applications.
Upload your 3GP video to the converter, select your desired output format, and click Convert. The job status appears while the video is processed.

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