How to open a JSON file online
Three steps, a few seconds, no software.
Open your .ISS file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .ISS 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 .ISS file?
The most common data format on the web.
An ISS file is an Inno Setup Script, a plain-text file that describes how a Windows installer is built. Open it with Inno Setup (free, jrsoftware.org) or any text editor. The file itself is not an installer. You compile it with Inno Setup to produce the actual EXE setup file.
Programs that open .ISS files
| Full name | Inno Setup Script |
|---|---|
| Developer | Jordan Russell / Martijn Laan (jrsoftware.org) |
| First released | 1997 (Inno Setup 1.0) |
| Category | Text & Code |
| MIME type | text/plain |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .ISS file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .ISS 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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