MKV to H265 Converter

Batch convert mkv files to h265 online. Change mkv to h265 on Windows, Mac, iPhone and Android in 2 clicks.

Select files for conversion or drag and drop them to the upload area.
Your files are securely protected and available only to you.
All files are automatically deleted from our servers after 1 hour.

How to convert MKV files to H265 online?

Step-by-step instructions for converting mkv files to h265

Upload MKV-file

Click "Choose File" button to select a mkv file on your computer. MKV file size can be up to 100 Mb.

Convert MKV to H265

Click "Convert" button to start conversion.

Download your H265

When the conversion process is complete, you can download the H265 file.


  • ❓ How can I convert MKV to H265?
    First you need to add file for conversion: drag and drop your MKV file or click the "Choose File" button. Then click the "Convert" button. When MKV to H265 conversion is completed, you can download your H265 file.
  • ⏱️ How long does it take to convert MKV to H265?
    Video conversion takes quite a while. It will probably take you a few minutes to change MKV to H265.
  • 🛡️ Is it safe to convert MKV to H265 on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including MKV to H265) is absolutely safe.
  • 💻 Can I convert MKV to H265 on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our MKV to H265 converter works online and does not require software installation.

Information about MKV and H265 file formats

Name MKV H265
Full name MKV - Matroska H.265 High Efficiency Video
File extension .mkv, .mk3d, .mka, .mks .h265
MIME type video/x-matroska, audio/x-matroska
Developed by Samsung Electronics, General Electric,M&K Holdings, NTT, JVC Kenwood and others
Type of format Container format
Description The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. H.265 is a video compression standard designed to a successor to the widely used Advanced Video Coding (H.264). In comparison to H.264, H.265 offers from 25% to 50% better data compression at the same level of video quality or substantially improved video quality at the same bit rate. In addition, it supports resolutions up to 8192×4320, including 8K UHD.
Technical details Matroska is similar in concept to other containers like AVI, MP4, or Advanced Systems Format (ASF) but is entirely open in specification, with implementations consisting mostly of open-source software.
File conversion MKV conversion H265 conversion
Associated programs VLC Media Player VLC media player, Apple QuickTime, MPlayer, Cyberlink PowerDVD