Little CMS Monitor ICC Tweaker

Little CMS Monitor ICC Tweaker is a monitor ICC profile refinement tool. It allows you to visually and interactively adjust ICC profiles for your display, enhancing color fidelity, appearance, and workflow-specific characteristics. Whether you’re working with manufacturer-supplied profiles or custom spectrophotometric measurements, this tool helps you fine-tune them with precision.

This is not a profiling tool, but a profile enhancer, a way to elevate existing ICC monitor profiles to professional-grade accuracy.

 

 

Monitor ICC Tweaker

What does this program do?

This application is designed for professionals and enthusiasts who demand precise control over monitor color rendering.

  • Real-time image preview: Load any RGB image (JPEG, PNG, BMP) and instantly see how your tweaks affect the rendering.
  • Base curve adjustments: Modify gamma and offset per channel (R, G, B), or apply a unified curve across all.
  • User-defined curves: Import tabulated or point-set curves from external sources like Excel.
  • Appearance tweaks using CIECAM16: Adjust lightness, chroma, hue, and more using one of the most advanced appearance models available.
  • Viewing conditions modeling: Simulate different environments (e.g., bright daylight, dim room) and embed those conditions into your profile.
  • .CUBE file import: Bring in creative LUTs from video workflows and embed them into ICC profiles.
  • Profile metadata editing: Customize copyright and description fields for sharing and archival.

The Monitor ICC Tweaker supports multi-monitor setups and auto-detects the active display. You can drag the application window to the target screen to ensure correct profile association.

Profile types supported

ICC monitor profiles typically come in two flavors:

  • Matrix-shaper: Lightweight, fast, ideal for predictable displays.
  • LUT-based: High precision, ideal for demanding workflows. (Note: macOS does not support LUT-based profiles for direct monitor assignment.)

You can choose between ICC v2 and v4 formats. V4 is recommended for its superior accuracy and flexibility.

More features

  • Choose grid resolution for LUTs and prelinearization curves.
  • Enable fallback matrix-shaper tags for compatibility.
  • Use any display profile as a base for your tweaks.
  • Assign your tweaked profile to the monitor when saving it.
  • Load the tweaked profile and recover the edition settings.

Read the manual.

License includes perpetual free upgrades to future versions.

Download for free the Monitor ICC Tweaker to give it a try!

Monitor Tweaker for Mac Monitor Tweaker for Windows
Apple Mac Microsoft Windows
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