Super helpful
Great app. Just wish it would support square png luts.
Response from developer
Thanks for the feedback, will look into it!! Don’t hesitate to send any other suggestions to contact@heliographe.net
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About
Visualize, apply, and export LUTs for photos and videos. This tool supports common formats like .CUBE and HALD, offering a split viewer for before/after comparisons and conversion between formats. It's designed for photographers and videographers seeking a powerful color grading companion.
✓Interactive 3D LUT visualizer
✓Before/After split viewer
✓Export to .CUBE and HALD formats
✓Convert between .CUBE and HALD
✓Supports drag & drop and keyboard shortcuts
✓Minimal interface with multiple color themes
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What's New in LUT Lab
1.2.1
February 18, 2026
LUT Lab 1.2.1 adds support for iOS 15. Previously: LUT Lab v1.2 supports directly opening zip compressed .CUBE files.
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In-App Purchases
$4.99
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FAQ
What is LUT Lab used for?
LUT Lab is used to visualize, apply, and export LUTs (Look Up Tables) for photos and videos. It allows users to preview color grading effects and process images with custom LUTs.
What LUT formats does LUT Lab support?
LUT Lab supports .CUBE files of any size on input and up to 65x65x65 for export. It also supports HALD formats in TIFF/PNG, with any rank.
Can I convert LUTs between formats with LUT Lab?
Yes, LUT Lab can convert LUTs from .CUBE to HALD and from HALD to .CUBE. It also offers an option to resample .CUBE files for better compatibility with other applications.
Does LUT Lab have ads?
No, LUT Lab does not contain advertisements. The app prioritizes user privacy and does not use third-party libraries or tracking.
How much does LUT Lab cost?
LUT Lab is free to download and use. A one-time in-app purchase is required to unlock multiple color themes.
What devices is LUT Lab compatible with?
LUT Lab is available on Mac, iPhone, and iPad. It leverages desktop-class features on iPad and Mac, including multiple windows and drag & drop functionality.
How often is LUT Lab updated?
The latest version of LUT Lab is 1.2.1, last updated on February 18, 2026. Updates typically include new features, bug fixes, and performance improvements.
What do users like about LUT Lab?
Users appreciate LUT Lab's minimal and information-dense interface, its interactive 3D cube visualizer, and the before/after split viewer. Its small app size and privacy-respecting design are also highlighted positives.
