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MD at a glance
MD
Convert to Markdown when the output should remain easy to edit in plain text, store in Git, review in diffs, or feed into automated publishing systems.
It is ideal for documentation, articles, developer guides, release notes, and notes that will later be rendered into richer formats.
Use Markdown when semantic structure matters more than exact page layout.
AZW3 at a glance
AZW3
Convert to AZW3 when producing an ebook for Kindle devices or Amazon-oriented reading environments, especially when the content benefits from more modern ebook styling than older AZW offers.
It is a good target for polished Kindle-ready releases and managed personal ebook libraries.
For neutral authoring and exchange, EPUB remains the more portable source format.
Format comparison
| Feature | MD | AZW3 |
|---|---|---|
| File type | Document | Ebook |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | reflowable |
| File size characteristics | medium | small |
| Compatibility | broad | moderate |
| Editability | moderate | moderate |
| Created year | 2004 | 2011 |
| Inventor | John Gruber and Aaron Swartz | Amazon |
| Status | active | active |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | exchange | reading |
| Reflowable text | ❌ | ✔️ |
| Structured data | ✔️ | ❌ |
When to use each format
When to use MD
- authoring
- review and collaboration
- distribution
- Readable in raw plain text.
When to use AZW3
- ebook publishing
- reader distribution
- digital libraries
- More capable than older MOBI-era ebook packaging.
FAQs
Why convert MD to AZW3?
Convert to AZW3 when producing an ebook for Kindle devices or Amazon-oriented reading environments, especially when the content benefits from more modern ebook styling than older AZW offers.
It is a good target for polished Kindle-ready releases and managed personal ebook libraries.
For neutral authoring and exchange, EPUB remains the more portable source format.
What changes when converting MD to AZW3?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from medium in MD to small in AZW3. Quality profile changes from depends in MD to reflowable in AZW3. Compatibility profile changes from broad in MD to moderate in AZW3. Archival profile changes from strong in MD to moderate in AZW3. Workflow profile changes from exchange in MD to reading in AZW3.
Moving to AZW3 adds reflowable text. Moving to AZW3 removes structured data.
What should I review after converting MD to AZW3?
Check the exported file for It is Kindle-ecosystem specific rather than a broadly open interchange format.; Publisher-facing workflows increasingly start from EPUB rather than from AZW3 directly..