# Convert AZW to AZW3

> Convert AZW to AZW3 online for free in seconds. Files are processed in a secure, isolated sandbox and deleted automatically. No sign-up, no watermarks.

URL: https://www.converterrr.com/azw-to-azw3

- Runs in an isolated cloud sandbox with Calibre: files are deleted automatically, and the job uses cloud credits.
- Engines: Calibre (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "azw3"` (paid plans).
- More: [eBook converter](https://www.converterrr.com/ebook-converter), [AZW converter](https://www.converterrr.com/azw-converter).

## How to convert AZW to AZW3

1. **Add your AZW files.** Drag and drop AZW files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose AZW3.** AZW3 is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Files are processed in a secure cloud sandbox and are usually ready in seconds.
4. **Download your AZW3.** Download each AZW3 file, or everything at once as a ZIP.

## Good to know

- For Kindle: AZW3 suits modern Kindles, MOBI older ones. You can also send EPUB directly via Send to Kindle.
- AZW files are typically used for older Kindle books, while AZW3 is best for Kindle devices and apps.
- This conversion runs on Calibre in an isolated cloud sandbox. Files are encrypted in transit and deleted automatically.

## AZW vs AZW3

|  | AZW | AZW3 |
| --- | --- | --- |
| Full name | Kindle eBook | Kindle Format 8 |
| Type | eBook | eBook |
| Extensions | .azw | .azw3 |
| MIME type | application/vnd.amazon.ebook | application/vnd.amazon.ebook |
| Best for | older Kindle books | Kindle devices and apps |
| Properties | proprietary, legacy format | proprietary |

**AZW:** AZW is Amazon's original Kindle format, based on MOBI.

**AZW3:** AZW3 (KF8) is Amazon's modern Kindle format with richer layout support than MOBI.

## Related conversions

- [AZW to PDF](https://www.converterrr.com/azw-to-pdf) (cloud)
- [PDF to AZW3](https://www.converterrr.com/pdf-to-azw3) (cloud)
- [AZW to DOCX](https://www.converterrr.com/azw-to-docx) (cloud)
- [DOCX to AZW3](https://www.converterrr.com/docx-to-azw3) (cloud)
- [AZW to EPUB](https://www.converterrr.com/azw-to-epub) (cloud)
- [EPUB to AZW3](https://www.converterrr.com/epub-to-azw3) (cloud)
- [AZW to TXT](https://www.converterrr.com/azw-to-txt) (cloud)
- [TXT to AZW3](https://www.converterrr.com/txt-to-azw3) (cloud)
- [AZW to MOBI](https://www.converterrr.com/azw-to-mobi) (cloud)
- [MOBI to AZW3](https://www.converterrr.com/mobi-to-azw3) (cloud)
- [HTML to AZW3](https://www.converterrr.com/html-to-azw3) (cloud)
- [AZW to RTF](https://www.converterrr.com/azw-to-rtf) (cloud)

## Convert AZW to other formats

[AZW to PDF](https://www.converterrr.com/azw-to-pdf), [AZW to DOCX](https://www.converterrr.com/azw-to-docx), [AZW to EPUB](https://www.converterrr.com/azw-to-epub), [AZW to TXT](https://www.converterrr.com/azw-to-txt), [AZW to MOBI](https://www.converterrr.com/azw-to-mobi), [AZW to RTF](https://www.converterrr.com/azw-to-rtf), [AZW to FB2](https://www.converterrr.com/azw-to-fb2), [AZW to LIT](https://www.converterrr.com/azw-to-lit), [AZW to PDB](https://www.converterrr.com/azw-to-pdb)

## Convert other formats to AZW3

[PDF to AZW3](https://www.converterrr.com/pdf-to-azw3), [DOCX to AZW3](https://www.converterrr.com/docx-to-azw3), [EPUB to AZW3](https://www.converterrr.com/epub-to-azw3), [TXT to AZW3](https://www.converterrr.com/txt-to-azw3), [MOBI to AZW3](https://www.converterrr.com/mobi-to-azw3), [HTML to AZW3](https://www.converterrr.com/html-to-azw3), [Markdown to AZW3](https://www.converterrr.com/md-to-azw3), [ODT to AZW3](https://www.converterrr.com/odt-to-azw3), [RTF to AZW3](https://www.converterrr.com/rtf-to-azw3), [FB2 to AZW3](https://www.converterrr.com/fb2-to-azw3), [CBZ to AZW3](https://www.converterrr.com/cbz-to-azw3), [CBR to AZW3](https://www.converterrr.com/cbr-to-azw3), [LIT to AZW3](https://www.converterrr.com/lit-to-azw3), [PDB to AZW3](https://www.converterrr.com/pdb-to-azw3), [LRF to AZW3](https://www.converterrr.com/lrf-to-azw3)

## AZW to AZW3: frequently asked questions

### How do I convert AZW to AZW3?

Drop your AZW file onto the converter above, make sure AZW3 is selected, and click Convert. When it's done, download the AZW3 file — it usually takes a few seconds.

### Is it safe to convert AZW to AZW3 here?

Yes. Your file is sent over an encrypted connection to an isolated sandbox that's created for your job only, then both the original and the result are deleted automatically.

### Is the AZW to AZW3 converter free?

Yes. Cloud conversions like this one use credits, and you get free credits every day (3 without an account, 10 with a free account).

### Will converting AZW to AZW3 reduce quality?

No — AZW3 preserves the content of your AZW file as faithfully as the format allows.

### Can I convert multiple AZW files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.