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Video Conversion

Convert iPhone Video to MKV Online — Free

Fast, free iPhone Video to MKV converter. No registration required.

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2M+ Files Converted

Trusted by thousands of users

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HTTPS encrypted uploads

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Files auto-deleted after processing

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Start converting instantly

Works Everywhere

Any browser, any device

How to Convert

1

Upload your .mp4 file by dragging it into the upload area or clicking to browse.

2

Choose your output settings. The default settings work great for most files.

3

Click Convert and download your .mkv file when it's ready.

What is iPhone Video?

iPhone-optimized video format using H.264 or HEVC codec. Configured for optimal playback on iPhone devices with proper resolution and bitrate.

Format Details

Full Name
iPhone Compatible Video
Extension
.mp4

Key Features

  • iPhone optimized
  • HEVC support
  • Retina display ready
  • AirPlay compatible

What is MKV?

MKV is an open-source container format that can hold unlimited video, audio, picture, or subtitle tracks. Popular for high-definition video content and anime.

Format Details

Full Name
Matroska Video
Extension
.mkv

Key Features

  • Multiple audio tracks
  • Subtitle support
  • Chapter markers
  • High quality

iPhone Video vs MKV

FeatureiPhone VideoMKV
Full NameiPhone Compatible VideoMatroska Video
Extension.mp4.mkv
Best ForiPhone optimizedMultiple audio tracks

Frequently Asked Questions

Our converter preserves resolution, frame rate, and audio tracks by default. The MKV output uses optimized codec settings to maintain quality as close to the original iPhone Video as possible.
Free users can convert videos up to 100MB. Pro users can convert files up to 2GB with server-side processing — no software installation needed.
Most videos convert in under 60 seconds. Longer or higher-resolution files may take 1-3 minutes. Processing runs on our servers, so your device stays fast.
Yes. Our video converter is browser-based — works on iPhone, Android, tablet, and desktop. No app download required.
Yes. Audio is preserved by default during video conversion. You can also adjust audio codec, bitrate, and volume in the advanced settings.

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