How to Convert H264 to H265 (HEVC/x265) While Keeping the Quality?

On this page, you’ll learn the difference between H264 and H265 and how to convert H.264 to H.265 with the best quality. You are recommended to free download the H264 to H265 converter here and keep reading:

Michelle Michelle | Updated on May 25, 2023

Should I Convert H264 to H265 (HEVC/x265)?

Tutorial: How to Convert H.264 to H.265 (HEVC/x265)?

Additional Reading: Recommended H.265 Players

Should I Convert H264 to H265 (HEVC/x265)?

Q: Should I convert my H.264 videos to HEVC/H.265 to save space? Will I lose quality?

A: H.264 and H.265 are popular video compression formats widely used today. But compared with H264, H265 has a higher compression ratio and it can encode the video at half-size while preserving the same level of video quality. Hence, it’s a good idea to convert 264 to 265 if you want to downsize the video file. However, since they are lossy formats, the H264 to H265 conversion will be lossy, too. But most people won’t spot any difference. So in a rough sense, you can convert x264 to x265 without losing quality.

In the next part, I will show you an efficient way to convert H264 to H265 with a versatile H.265 converter. Just read and follow.

Best x264 to x265 Converter

HD Video Converter Factory Pro makes it easier than ever to convert h264 to h265 with the highest quality. It can also convert MPEG-4, Xvid, WMV, MP4, and 500+ formats and devices. Batch conversion and GPU acceleration is supported.

Tutorial: How to Convert H.264 to H.265 (HEVC/x265)?

WonderFox HD Video Converter Factory Pro is the perfect converter program for H264 to H265 conversion. It supports all formats and provides more than 500 output profiles, including H265, H264, MPEG-4, MP4, MKV, AVI, MOV, etc. In just three steps, you can convert H264 to H265 without quality loss. Also, the program supports hardware acceleration, if your computer has an NVIDIA graphics card or Intel QSV, you can convert x264 to x265 up to 25 times faster. You can also use Batch mode to convert multiple video files at once. Now, download download this converter for free and see how to convert x264 to x265 below:

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Step 1. Import the H.264 Video into the Converter

Launch HD Video Converter Factory Pro and open Converter. Click on "+ Add Files" on the upper-left corner to import the needed video into the program, or you can directly drag the video into the converter.

Import H264 Video into the Converter

Step 2. Choose the H.265 Encoder

On the right side of the workspace, click on the format icon, and a format-selecting page will appear. Under the Video tab, select H265 for MP4, H265 for MKV.

Tips: You can choose any other formats you prefer.

Choose H265 Encoder

Step 3. Start the H.264 to H.265 Conversion

Finally, return to the main screen and hit "Run" to start conversion.

Tips: You can click the ▼ button to set an output folder before conversion.

Convert x264 to x265

More of HD Video Converter Pro

• Download HD videos and music from 1000+ websites;
• Record part or full screen with audio in HD;
• Compress large videos from GB to MB;
• Upscale video quality from SD to HD;

Additional Reading: Recommended H.265 Players

It should be noted that H265 videos are still not fully supported on most devices. You may need an HEVC player to play your video successfully. Here are three free media players that support x265 videos:

VLC Media Player - Available on Windows, Linux, Mac OS, iOS, and Android

PotPlayer - Available on Windows

5KPlayer - Available on Windows and Mac OS

On Windows, you can also install HEVC codecs to play HEVC videos fluently.


H.265 encoder has a more advanced compression technology than H264 that it can encode video into a smaller size while keeping the same level of video quality. If you want to reduce the size of your videos yet at the same time don’t want to compromise the quality, then transcode the video codec from H264 to H265 is a good resort.

If you find this article helpful, please feel free to share it with others. Thanks for reading!

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