Convert anything, at global scale.
200+ formats and automation APIs that feels instant.
CONVERT
From
To
Drop files or choose a source
Upload multiple files at once, mix formats, and fine-tune every conversion with format-aware settings.
Max 2GB per file · Drag & drop ready · Mixed file types welcome
AUDIO
VML to AU Converter — Free, Online, No Signup
Convert VML files to AU online with no signup required.
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.
AU at a glance
AU
AU belongs to an earlier multimedia era where workstation and Unix vendors often had their own practical audio defaults.
Format comparison
| Feature | VML | AU |
|---|---|---|
| File type | Vector | Audio |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1998 | 1987 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | Sun Microsystems |
| Status | legacy | active |
| Primary use cases |
|
|
When to use each format
When to use VML
- Your source file is already in VML.
- Preserve source expectations before exporting to AU.
- VML is commonly used in vector workflows.
When to use AU
- Your target workflow expects AU.
- Improve delivery compatibility with AU.
- AU is commonly used in audio workflows.
FAQs
Why convert VML to AU?
Convert to AU when preserving compatibility with older Unix or workstation software, educational assets, or historical multimedia archives.
In most present-day workflows the practical task is to decode AU content and move it to WAV, AIFF, or a modern compressed format.
Use AU only when downstream compatibility makes it necessary.
What changes when converting VML to AU?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting VML to AU?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.