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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.
AVIF at a glance
AVIF
AVIF emerged from the Alliance for Open Media's work around AV1 and uses the HEIF family as its structural container, which connects it to both modern web delivery and newer image-container design.
Format comparison
| Feature | VML | AVIF |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 2019 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | Alliance for Open Media |
| 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 AVIF.
- VML is commonly used in vector workflows.
When to use AVIF
- Your target workflow expects AVIF.
- Improve delivery compatibility with AVIF.
- AVIF is commonly used in image workflows.
FAQs
Why convert VML to AVIF?
Convert to AVIF when you need compact, high-quality web or app images, especially for responsive delivery, ecommerce, editorial sites, and modern UI assets.
It is a strong target when bandwidth savings and visual quality both matter.
What changes when converting VML to AVIF?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to AVIF adds animation support. Moving to AVIF removes vector scaling.
What should I review after converting VML to AVIF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.