How to open a JSON file online
Three steps, a few seconds, no software.
Open your .ACB file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .ACB 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 .ACB file?
The most common data format on the web.
An ACB file is an Adobe Color Book, a binary library of named spot colors (such as PANTONE or HKS swatches) used in Photoshop, Illustrator and InDesign. You do not open it by double-clicking; instead, you copy it into the app's Presets/Color Books folder and pick it in the Color Picker. The file contains only color definitions, no executable code, so the safety risk is low.
Programs that open .ACB files
| Full name | Adobe Color Book |
|---|---|
| Developer | Adobe Systems |
| First released | Late 1990s (with Photoshop's named color books / Pantone libraries) |
| Category | Text & Code |
| MIME type | application/octet-stream |
| Signature | 38 42 43 42 "8BCB" - Adobe Color Book signature |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .ACB file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .ACB 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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