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MD at a glance
MD
Markdown was created in 2004 by John Gruber with Aaron Swartz, but the later CommonMark effort became important because the original syntax description was too ambiguous to keep implementations aligned.
MNG at a glance
MNG
MNG emerged from PNG-adjacent development discussions that wanted something more capable than static PNG, but its complexity limited broad consumer adoption.
Format comparison
| Feature | MD | MNG |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2004 | 2001 |
| Inventor | John Gruber and Aaron Swartz | PNG / MNG developer community |
| Status | active | legacy |
| Primary use cases |
|
|
| Vector scaling | Not supported | Not supported |
When to use each format
When to use MD
- Your source file is already in MD.
- Preserve source expectations before exporting to MNG.
- MD is commonly used in document workflows.
When to use MNG
- Your target workflow expects MNG.
- Improve delivery compatibility with MNG.
- MNG is commonly used in image workflows.
FAQs
Why convert MD to MNG?
Convert to MNG when preserving historical animated PNG-family assets or interfacing with a niche workflow that still expects it.
In most modern contexts, APNG, WebP, or video are more practical targets.
What changes when converting MD to MNG?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting MD to MNG?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.