How to open a JSON file online
Three steps, a few seconds, no software.
Open your .MRK file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .MRK 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 .MRK file?
The most common data format on the web.
An MRK file (almost always named AUTPRINT.MRK) is a small plain-text print order stored in the /MISC folder of a camera memory card. It tells a DPOF-aware photo printer or kiosk which images to print and how many copies. It contains no photos. Your actual pictures are in the /DCIM or /IMAGE folder on the same card.
Programs that open .MRK files
| Full name | DPOF Auto Print Order File |
|---|---|
| Developer | DPOF consortium (Canon, Kodak, Fujifilm, Matsushita/Panasonic) |
| First released | 1998 (DPOF 1.00 specification) |
| Category | Text & Code |
| MIME type | text/plain |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .MRK file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .MRK 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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