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STRUCTURED DATA
WMF to JSON Converter — Free, Online, No Signup
Convert WMF files to JSON online with no signup required.
WMF at a glance
WMF
The original WMF specification was published in the Windows 3.1 SDK documentation in 1992. Aldus Corporation independently added a 'placeable' header for device independence, which Microsoft later incorporated in Windows 2000. The format specification was republished in 2006 under the Microsoft Open Specification Promise.
JSON at a glance
JSON
RFC 8259 describes JSON as derived from ECMAScript object literals and notes its design goals as minimal, portable, textual, and a subset of JavaScript.
Format comparison
| Feature | WMF | JSON |
|---|---|---|
| File type | Vector | Other |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1990 | 2001 |
| Inventor | Microsoft Corporation | Douglas Crockford |
| Status | legacy | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Vector scaling | Supported | Not supported |
| Structured data | Not supported | Supported |
When to use each format
When to use WMF
- Your source file is already in WMF.
- Preserve source expectations before exporting to JSON.
- WMF is commonly used in vector workflows.
When to use JSON
- Your target workflow expects JSON.
- Improve delivery compatibility with JSON.
- JSON is commonly used in other workflows.
FAQs
Why convert WMF to JSON?
Convert to JSON when data needs to move between systems, APIs, scripts, and applications in a structured but broadly compatible format.
It is ideal for payloads, configuration, manifests, exports, and machine-readable documents that need to be easy to parse programmatically.
Use it when interoperability and structured automation matter more than comments or document-style readability.
What changes when converting WMF to JSON?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to JSON removes vector scaling. Moving to JSON adds structured data.
What should I review after converting WMF to JSON?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.