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
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.
HEIF at a glance
HEIF
HEIF was developed by MPEG and built on the ISO Base Media File Format lineage, which helps explain why it feels more like a modern media container for images than a simple legacy bitmap file.
Format comparison
| Feature | MD | HEIF |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2004 | 2015 |
| Inventor | John Gruber and Aaron Swartz | Moving Picture Experts Group (MPEG) |
| Status | active | active |
| 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 HEIF.
- MD is commonly used in document workflows.
When to use HEIF
- Your target workflow expects HEIF.
- Improve delivery compatibility with HEIF.
- HEIF is commonly used in image workflows.
FAQs
Why convert MD to HEIF?
Convert to HEIF when the destination benefits from modern image containers that can preserve more than a single flat raster, such as advanced mobile-photo workflows or efficient high-quality storage.
It is a strong target in contemporary imaging ecosystems.
What changes when converting MD to HEIF?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting MD to HEIF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.