How to open a JSON file online
Three steps, a few seconds, no software.
Open your .FMW file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .FMW 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 .FMW file?
The most common data format on the web.
An FMW file is a workspace created by FME Form (formerly FME Desktop) from Safe Software. It defines a data transformation pipeline for converting between GIS and other spatial formats. To open it you need FME Form; no free alternative exists. FMW files can contain embedded database credentials, so treat them as sensitive configuration files.
Programs that open .FMW files
| Full name | FME Workspace File |
|---|---|
| Developer | Safe Software Inc. |
| First released | 1997 (FME — Feature Manipulation Engine, Safe Software) |
| Category | Text & Code |
| MIME type | application/xml |
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Every viewer is free to use.
Frequently asked questions
Is my .FMW file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .FMW 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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