Convert between video and OpenEXR sequences with production-grade OpenColorIO, multi-platform builds, and a Nuke-inspired GUI.
Desktop app and CLI for converting between video and OpenEXR sequences with OpenColorIO color management and built-in slate rendering. Targets the VFX Reference Platform CY2026.
Video → EXR and EXR → video conversion
OpenColorIO 2.5 with bundled ACES Studio Config v4
Camera IDTs: Apple Log, ARRI LogC, RED, Sony, Canon, DJI, and more
Built-in slate, burn-in, and watermark compositing
GUI + CLI for editorial and delivery workflows
Windows, macOS (Apple Silicon & Intel), and Linux builds
Standalone apps need no extra install on supported platforms. Building from source requires Python 3.13 and uv.
Is EXR Converter really free?
Yes. It is MIT-licensed open source. Downloads and source are free forever.
Does it support ACES / custom OCIO configs?
Yes. It ships with ACES Studio Config v4 and respects $OCIO or a custom config path for studio pipelines.
CLI only or GUI?
Both. Use the desktop GUI for interactive work or video2exr / exr2video from the command line.
Need help?
macOS builds use ad-hoc signatures. After installing, run xattr -cr "/Applications/EXR Converter.app" once if Gatekeeper blocks the app.