DJV

DJV is a free, open source media player built for professional image review. Real-time, high bit-depth EXR playback, A/B comparison, OTIO color management and more. Never compromise on your renders again.

CORE FEATURES:

• Support for high resolution and high bit depth images
• A/B comparison with wipe, overlay, and difference modes
• Timeline support with OpenTimelineIO
• Color management with OpenColorIO
• Multi-track audio with variable speed and reverse playback
• Experimental support for USD files
• Available for Linux, macOS, and Windows

Documentation

DJV is built with the tlRender and feather-tk libraries.

Example of two images being compared with a wipe:

Example of two images being compared with a horizontal layout:

Downloads

https://github.com/grizzlypeak3d/DJV/releases

Note: Download packages and the pip install include only the video and audio codecs that need no patent license: AV1, APV, VP8 and VP9, MPEG-2 and MPEG-4, MJPEG, FFV1, CineForm, UT Video, HuffYUV, MagicYUV, Dirac, PNG, v210, and FLAC, Opus, Vorbis, ALAC, MP3 and PCM audio. H.264, HEVC, ProRes, DNxHD, DV and AAC are not among them, so a camera movie does not open out of the box. To play those, either install FFmpeg yourself and point DJV at the external FFmpeg command (see documentation), or build from source, where the codecs are compiled in.

DJV can also be installed with pip, for Python 3.12 or newer on Linux, macOS, and Windows:

pip install DJV_viewer
djv

The djv command runs the application, and the bindings DJV is built from are importable as djv, alongside tlrender and feather_tk (see documentation).

Note: Python 3.12 or 3.13 is the easy choice for now. The bindings depend on OpenTimelineIO, which has no prebuilt wheels yet for Python 3.14, or for Intel macOS: there pip builds it from source, which needs a C++ compiler and the Python development files (python3-dev on Debian and Ubuntu, python3-devel on Fedora and Rocky).

Building

DJV is built with CMake. A super build is provided that builds the dependencies and then DJV, driven by a script per platform:

sh DJV/sbuild-linux.sh
sh DJV/sbuild-macos.sh
DJV\sbuild-win.bat

The system packages each platform needs, the options, and building against a distribution's own packages are in the documentation: https://grizzlypeak3d.github.io/DJV/building.html