Online H265 to MKV Converter

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What is an H.265 File?

H.265, also known as HEVC (High Efficiency Video Coding), is a video compression standard designed to succeed H.264, offering even better compression and quality.

Key Advantages of H.265 Files:

Quality: H.265 provides superior video quality at lower bitrates, making it ideal for high-definition and 4K video.

Compression: H.265 offers efficient compression, reducing file sizes while maintaining quality.

Limitations of H.265 Files:

Compatibility: H.265 is newer and may not be supported by all older devices and media players.

Processing: Encoding and decoding H.265 requires significant processing power.


H.265 is an excellent choice for high-quality, high-efficiency video compression, especially for HD and 4K content, though compatibility and processing power may be considerations.

What is an MKV File?

MKV, or Matroska Video, is an open-standard multimedia container format known for its flexibility and support for multiple video, audio, subtitle tracks, and metadata.

Key Advantages of MKV Files:

Flexibility: MKV supports multiple video, audio, and subtitle tracks in one file.

Quality: MKV can store high-quality video and audio without significant compression.

Limitations of MKV Files:

Compatibility: MKV is not as widely supported as MP4 or AVI, especially on older devices or certain media players.

File Size: High-quality MKV files can be quite large, requiring significant storage space.


MKV is a powerful and flexible format ideal for high-quality media with multiple tracks, though compatibility can be an issue.

How to convert H265 to MKV?

Step 1: Video Upload

Upload your H265 video file by dragging and dropping it into the upload area or by clicking 'Browse' to select it from your device.

Step 2: Configure Output Settings

Set your preferred options for the MKV video, such as resolution, bitrate, and any additional settings.

Step 3: Begin Conversion

Initiate the conversion by clicking on the 'Convert' button to transform your H265 video into MKV format.

Step 4: Save Your Video

After the conversion is complete, a 'Download' button will appear. Click it to download the MKV video to your computer.

Step 5: Resetting for Another Video File

To convert another video, click the 'Convert Another Video' button or use the file uploader to add a new H265 video file.

H265 to MKV Conversion FAQs

1. What happens when I convert H265 to MKV?

The conversion from H265 to MKV is efficient and reliable. Simply upload your H265 file, and our tool will convert it to MKV in a matter of seconds.

2. Can I upload H265 files easily for conversion to MKV?

Easily upload H265 files by dragging or clicking 'Browse'. The upload process is quick and straightforward, allowing you to add your H265 files for conversion to MKV.

3. How do I download the converted MKV file?

After conversion, click the Download link to save the MKV file to your device. The download process is quick and easy, ensuring you can access your MKV file immediately.

4. Is batch conversion of H265 files to MKV supported?

There are no limits to converting multiple H265 files to MKV. You can upload and convert as many H265 files to MKV as needed, one after the other.

5. What do I do to convert another H265 file?

Start another conversion by clicking 'Convert Another' or uploading a file. This feature helps you to initiate a new H265 to MKV conversion effortlessly.

6. Is the H265 to MKV conversion process confidential?

Yes, the conversion process is secure and happens entirely on the client side. This means your H265 files are processed locally, maintaining the highest level of security.

7. What quality can I expect from converted MKV files?

Our tool guarantees high-quality MKV files after conversion. The conversion process is optimized to preserve the original quality of your H265 files in the MKV format.

8. What is the maximum size for H265 files?

Files must be 25MB or smaller for conversion. This size limit helps maintain the speed and efficiency of the conversion process, ensuring you get your MKV file quickly.

9. Is the H265 to MKV conversion fast?

The conversion time depends on the file size and your internet connection speed, but it's usually very fast. Our tool is optimized to provide quick conversions, ensuring you get your MKV file promptly.

10. Who do I contact for H265 to MKV conversion support?

For help, reach out to our support team through the 'Contact Us' page. Our team is available to assist you with any problems or questions related to the H265 to MKV conversion.