Convert 3D LUT formats locally in your browser, preview the transform, inspect curves and download identity Hald images for image-editor workflows.
Preserve source size by default, or resample before export.
.3dl uses 3D LUT Creator compatible 10-bit output.
Choose a square Hald-compatible size.
Local processing: LUT files are parsed, previewed and converted in your browser. They are not uploaded.
Use the converter to move between common `.cube`, `.3dl`, and Hald CLUT workflows. When target size changes, the LUT is resampled with tetrahedral interpolation before writing the new file.
Hald export requires square cube sizes: 16, 25, 36, 49, or 64 points.
Download an identity Hald PNG, apply color grading in your image editor, export it back as PNG without resizing or cropping, then load it here to convert to `.cube` or `.3dl`.
Prefer PNG over JPEG, preserve exact pixel dimensions, and avoid automatic color conversions that change the CLUT image unintentionally.
| Cube size | Hald level | Image size | Recommended use | Download |
|---|---|---|---|---|
| 16 | 4 | 64 x 64 | Fast tests and compact LUTs | PNG |
| 25 | 5 | 125 x 125 | 3D LUT Creator style workflows | PNG |
| 36 | 6 | 216 x 216 | Balanced precision and file size | PNG |
| 49 | 7 | 343 x 343 | Higher precision grading | PNG |
| 64 | 8 | 512 x 512 | High quality interchange | PNG |
No. Conversion, preview generation and export happen locally in the browser. The site does not upload LUT files.
The converter reads common `.cube` files, 3D LUT Creator-style `.3dl` files, and browser-decodable Hald CLUT images such as PNG, JPEG and WebP.
Not in v1. The browser must be able to decode the image, so PNG, JPEG and WebP are supported.
A Hald image has a strict relationship between cube size and image dimensions. Non-square sizes such as 17 or 33 need resampling to 16, 25, 36, 49 or 64 before Hald export.
The `.3dl` export uses 3D LUT Creator-compatible blue-fastest row order with 10-bit integer values.
Yes. Use the HSL preview, sample photo, curves and 3D cube tabs after loading a LUT.
Common LUT-capable tools include DaVinci Resolve, Adobe Premiere Pro, Final Cut Pro, Photoshop, Affinity Photo, OBS Studio, and VFX tools that use OpenColorIO. Check each app’s documentation because supported LUT formats and color-management assumptions differ.
