How to open a JSON file online
Three steps, a few seconds, no software.
Open your .JSPX file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .JSPX 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 .JSPX file?
The most common data format on the web.
A JSPX file is a Jakarta Server Pages "JSP Document", the XML-syntax version of a JSP web page that runs on a Java web server such as Apache Tomcat. The server executes it and sends your browser plain HTML; it is not a document you open. If a website downloaded a .jspx when you expected a PDF or invoice, rename it to .pdf (or .jpg, .xlsx) and open it normally.
Programs that open .JSPX files
| Full name | Jakarta Server Pages Document (XML-syntax JSP) |
|---|---|
| Developer | Sun Microsystems (2002); now Eclipse Foundation (Jakarta EE) |
| First released | 2002 (JSP 1.2 'JSP Documents' in XML syntax); part of Jakarta EE today |
| Category | Text & Code |
| MIME type | application/xml |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .JSPX file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .JSPX 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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