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VML at a glance
VML
VML emerged as a 1998 W3C submission backed by Microsoft and partners such as Autodesk, Hewlett-Packard, Macromedia, and Visio, reflecting the moment when web graphics standards were still unsettled.
WEBP at a glance
WEBP
Google announced WebP in 2010 for faster image delivery on the web, and the format is now documented in RFC 9649.
Format comparison
| Feature | VML | WEBP |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 2010 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | |
| Status | legacy | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Supported | Not supported |
When to use each format
When to use VML
- Your source file is already in VML.
- Preserve source expectations before exporting to WEBP.
- VML is commonly used in vector workflows.
When to use WEBP
- Your target workflow expects WEBP.
- Improve delivery compatibility with WEBP.
- WEBP is commonly used in image workflows.
FAQs
Why convert VML to WEBP?
Convert to WebP when delivering images for the web or apps and you want strong compression with support for transparency or animation.
It is a practical target for responsive sites, ecommerce, editorial media, and interface assets.
What changes when converting VML to WEBP?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to WEBP adds animation support. Moving to WEBP removes vector scaling.
What should I review after converting VML to WEBP?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.