How to open a JSON file online
Three steps, a few seconds, no software.
Open your .ADML file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .ADML 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 .ADML file?
The most common data format on the web.
An ADML file is a language-specific XML resource file for Windows Group Policy administrative templates. It works as a pair with an ADMX file - the ADMX defines the policy settings, while the ADML provides the display text in a specific language such as en-US. IT administrators place these files in the PolicyDefinitions folder; to view or edit the raw XML, any text editor works.
Programs that open .ADML files
| Full name | Administrative Template Language File |
|---|---|
| Developer | Microsoft Corporation |
| First released | 2007 (Windows Vista SP1 / Server 2008) |
| Category | Text & Code |
| MIME type | text/xml |
| Signature | 3C 3F 78 6D 6C |
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Frequently asked questions
Is my .ADML file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .ADML 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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