Convert MKV to H265 Online — Free & Fast | AnyConv

MKV to H265 Converter

Quickly convert multiple mkv files to h265 — free & online.

Drag & drop your files here or click to upload

How to convert MKV to H265 online

Follow these simple steps to convert mkv files to h265 using AnyConv. It works on all devices — Windows, Mac, Linux, iPhone, Android.

Upload your MKV 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 MKV into H265. The process usually takes just a few seconds.

Download your H265

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

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

What is a H265 file?

H.265, also known as HEVC (High Efficiency Video Coding), is a video compression standard that offers significantly better compression than its predecessor, H.264. It allows for high-quality video at reduced bitrates, making it ideal for 4K and 8K content delivery.

H.265 is widely used in streaming services, digital broadcasting, and modern cameras. Although it requires more processing power for decoding, it provides excellent visual quality and smaller file sizes.

How to open H265 files

H.265 files can be played using VLC, PotPlayer, or modern devices and operating systems with support for HEVC codecs. Some systems may require additional codec installations.

Use AnyConv to convert H.265 files to H.264 or MP4 if you're encountering compatibility issues.

Key facts about H265

  • Full name: High Efficiency Video Coding (HEVC)
  • Extension: .h265 / .hevc / .mp4
  • MIME type: video/h265
  • Developed by: ISO/IEC & ITU-T
  • Initial release: 2013

Useful links and resources

Convert to H265

Want to get a file in H265 format? Choose the original format you’re starting with — AnyConv can quickly convert dozens of file types into H265.

❓ Frequently Asked Questions

Answers to common questions about converting MKV to H265
  • Do I need to register to convert MKV files?
    Not at all! You can convert MKV to H265 without signing up or installing anything.
  • Is it safe to convert MKV to H265 on AnyConv?
    Absolutely. All MKV and H265 files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
  • Will the quality change after converting MKV to H265?
    We do our best to preserve the original quality during MKV to H265 conversion. The result is accurate and clean.
  • How long does it take to convert MKV to H265?
    Most conversions from MKV to H265 take just a few seconds — even for larger files.
  • Can I upload more than one MKV file?
    Yes, batch conversion is supported. You can convert multiple MKV files to H265 at once — fast and easy.
  • What browsers support MKV to H265 conversion?
    All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting MKV to H265 on any platform.