VideoLAN, a project and a non-profit organization.


x265 is a free software library and application for encoding video streams into the H.265/MPEG-H HEVC compression format, and is released under the terms of the GNU GPL.

Features Overview

Provides next-generation compression and codec.

Fast and excellent quality.

Completly free and libre software, ensuring freedom for everyone.

The APIs are similar to x264 APIs

Getting x265


The latest x265 source code can always be found by anonymous hg repository:

# hg clone

You can browse the source on-line.

Encoder features


For support information and to ask questions, you have the following possibilities:

A mailing list (x265-devel), and IRC (#x265@freenode and #x265dev@freenode).


Please report any bugs to the mailing list. If it is a crash, then compile x265 with `./configure --enable-debug` and follow the ffmpeg bugreporting guidelines.


In addition to being free to use under the GNU GPL, x265 is also available under a commercial license from MulticoreWare Inc. .

Software using x265

If you use x265 in another project, let us know!