How to open a JSON file online
Three steps, a few seconds, no software.
Open your .ISM file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .ISM 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 .ISM file?
The most common data format on the web.
An ISM file is an InstallShield project file, the source code for building a Windows software installer. Open it with InstallShield (Revenera/Flexera); XML-mode files can be read in Notepad++ or VS Code. It compiles to a .msi package.
Programs that open .ISM files
| Full name | InstallShield Project File |
|---|---|
| Developer | Flexera Software (formerly Macrovision, acquired InstallShield from Stirling Technologies in 1999) |
| First released | ~1999 (InstallShield became a major product; ISM as primary project format introduced in InstallShield 7.x, ~2001) |
| Category | Text & Code |
| MIME type | application/xml |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .ISM file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .ISM 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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