x265 HEVC Encoder / H.265 Video Codec

x265 is a H.265 / HEVC video encoder application library, designed to encode video or images into an H.265 / HEVC encoded bitstream.

x265 demonstrates best overall HEVC encoding efficiency in Moscow State University’s Codec Comparison

Develop the best HEVC (H.265) video encoder in the world
– Offer the highest possible quality at any given bit rate
– Offer the lowest possible bit rate for a given quality level
Deliver the world’s fastest and most computationally efficient HEVC encoder
– Highest encoding speed on any hardware configuration
– Highest visual quality, whether you are doing high quality offline encoding or high speed real-time encoding
Deliver industry-leading HEVC codec features, supporting the full HEVC standard including range extensions
Achieve wide adoption from the open source community, leading web video services, broadcast encoder developers, independent software developers, video hardware and software developers, device OEMs, semiconductor manufacturers and academics.
Provide the best possible support to developers, licensees and adopters

Try it

The x265 Encoder application combines a user-friendly interface with the x265 encoder library, making it easy for anyone to convert MP4 files to HEVC.

x265 is available under the terms of the open source GNU GPL 2 license. x265 software can be downloaded from here.
x265 is also available under a commercial license to companies who wish to distribute x265 without the copyleft restrictions that the GPL v2 license imposes.

For commercial licensing questions,