Convert H264 to MKV Online — Free & Fast | AnyConv

H264 to MKV Converter

Quickly convert multiple h264 files to mkv — free & online.

Drag & drop your files here or click to upload

How to convert H264 to MKV online

Follow these simple steps to convert h264 files to mkv using AnyConv. It works on all devices — Windows, Mac, Linux, iPhone, Android.

Upload your H264 file

Drag & drop your file into the upload area. You can also click to select it manually. Max file size: 100 MB.

Start converting

Hit the “Convert” button to turn your H264 into MKV. The process usually takes just a few seconds.

Download your MKV

Once ready, download your converted file instantly. The download link is private and only works on your device.

What is a H264 file?

H.264, also known as AVC (Advanced Video Coding), is one of the most widely used video compression standards in the world. It offers excellent video quality at relatively low bitrates and is the backbone of MP4 files.

H.264 is used in everything from Blu-ray discs to online streaming platforms and video conferencing. It remains a standard choice for compatibility and efficient compression.

How to open H264 files

H.264 files are playable in nearly all modern players, including VLC, Windows Media Player, and QuickTime. They are often embedded in MP4 or MKV containers.

Use AnyConv to convert raw H264 streams to MP4 for better compatibility and easier use.

Key facts about H264

  • Full name: H.264 Video Compression
  • Extension: .h264 / .mp4 / .mkv
  • MIME type: video/h264
  • Developed by: ITU-T, ISO/IEC
  • Initial release: 2003

Useful links and resources

What is a MKV file?

MKV (Matroska Video) is a flexible, open-standard container format capable of holding unlimited video, audio, subtitle tracks, and metadata. It’s popular for high-quality video content, including HD and Blu-ray rips.

MKV is widely supported and ideal for movies, series, and complex media projects. It’s open-source and favored for its advanced features and strong compression support.

How to open MKV files

MKV files are supported by VLC, MPC-HC, KMPlayer, and many smart TVs and media servers. It's a preferred format for high-definition video and multiple tracks.

Use AnyConv to convert MKV to MP4 or another format for broader compatibility.

Key facts about MKV

  • Full name: Matroska Video File
  • Extension: .mkv
  • MIME type: video/x-matroska
  • Developed by: Matroska.org
  • Initial release: 2002

Useful links and resources

Convert from H264

Need to change your H264 files to a different format? Below are all the available tools to help you turn H264 into the format you need.

Convert to MKV

Want to get a file in MKV format? Choose the original format you’re starting with — AnyConv can quickly convert dozens of file types into MKV.

❓ Frequently Asked Questions

Answers to common questions about converting H264 to MKV
  • Do I need to register to convert H264 files?
    Not at all! You can convert H264 to MKV without signing up or installing anything.
  • Is it safe to convert H264 to MKV on AnyConv?
    Absolutely. All H264 and MKV files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
  • Will the quality change after converting H264 to MKV?
    We do our best to preserve the original quality during H264 to MKV conversion. The result is accurate and clean.
  • How long does it take to convert H264 to MKV?
    Most conversions from H264 to MKV take just a few seconds — even for larger files.
  • Can I upload more than one H264 file?
    Yes, batch conversion is supported. You can convert multiple H264 files to MKV at once — fast and easy.
  • What browsers support H264 to MKV conversion?
    All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting H264 to MKV on any platform.