tev

It is an HDR image viewer that loads and displays high‑dynamic‑range files with full support for color management, including ICC and CICP profiles. The program handles a wide range of formats, auxiliary channels, gain maps and animation data, and offers tools such as histograms, tonemaps and error metrics in any color space. Its interface allows drag‑and‑drop opening, layer and channel selection, and keyboard shortcuts for quick navigation, while a command‑line mode lets users specify particular layers or channels directly.

Designed for users who need precise color representation—photographers, visual effects artists and developers working with HDR pipelines—the viewer can be controlled locally or remotely via a simple TCP protocol. Remote commands include opening, creating, updating, and closing images, as well as drawing vector graphics over them, making it suitable as a frontend for renderers or other automated workflows.

The application runs on macOS, Windows and Linux, offering installers and package‑manager options, and can also be built from source. It starts instantly and can load hundreds of images within seconds, providing a fast and accurate environment for HDR image inspection.