How to open a JSON file online
Three steps, a few seconds, no software.
Open your .LUT file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .LUT file opens as a tidy, foldable tree, with the exact line of any error pointed out.
Search, copy or download
Search keys and values, copy any path or value, switch to a table, or download a clean copy.
What is a .LUT file?
The most common data format on the web.
A .lut file is a Color Look-Up Table, a data file that maps input color values to output values for color grading, gamma correction, or film emulation. Open it in XnView, DaVinci Resolve, or Adobe Photoshop depending on where it came from. The format is not standardized, so a .lut from one app may not load in another.
Programs that open .LUT files
| Full name | Color Look-Up Table File |
|---|---|
| Developer | Various (XnView uses proprietary .lut; broader LUT formats from Houdini, Da Vinci Resolve, etc.) |
| First released | 1990s (LUT concept); XnView-specific .lut since early 2000s |
| Category | Text & Code |
| MIME type | application/octet-stream |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .LUT file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .LUT file is invalid. Can you fix it?
We show the exact line and column of the first error. For common problems like comments, trailing commas, single quotes or Python-style True/False/None, click Try to repair and download the fixed file.
How large can the file be?
Up to 50 MB. The tree only builds the branches you open, so even multi-megabyte files stay responsive.
What is JSONPath?
A path like $.orders[3].customer.email that points to one value inside the data. Click any node to see its path and copy it for code, jq or your API docs.
Can I see my data as a table?
Yes. Any array of objects can be shown in the Table view and downloaded as CSV.
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