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YAML at a glance
YAML
The modern YAML name is commonly expanded as 'YAML Ain't Markup Language', reflecting a deliberate move away from treating it as a document markup format.
VCF at a glance
VCF
RFC 6350 standardized a modern vCard profile for exchanging contact-card records between systems.
Format comparison
| Feature | YAML | VCF |
|---|---|---|
| File type | Other | Other |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2001 | 1995 |
| Inventor | Clark Evans, Ingy döt Net, Oren Ben-Kiki | Versit Consortium |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Vector scaling | Not supported | Not supported |
| Reflowable text | Not supported | Not supported |
| Structured data | Supported | Supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use YAML
- Your source file is already in YAML.
- Preserve source expectations before exporting to VCF.
- YAML is commonly used in other workflows.
When to use VCF
- Your target workflow expects VCF.
- Improve delivery compatibility with VCF.
- VCF is commonly used in other workflows.
FAQs
Why convert YAML to VCF?
Convert to VCF when exporting contacts for import into phones, mail clients, CRMs, or other address-book systems.
It is ideal for contact migration, lead handoff, customer lists, and personal address-book backups.
Use it when preserving contact semantics matters more than generic tabular representation.
What changes when converting YAML to VCF?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting YAML to VCF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.