Your files stay on your Mac.
Converting Kindle AZW3 to Word pulls the text and structure out of a Kindle e-book and writes it into a standard, editable DOCX file. The output opens in Microsoft Word, Pages, or any word processor without a Kindle app or account. Embedded metadata is stripped from every converted file.
Drag one AZW3 file or a whole folder of Kindle books into Convertessa. Everything stays on your Mac — nothing is uploaded to any server.
Select Word (DOCX) from the output format list. Convertessa converts to the format you pick — it never auto-detects or guesses the target.
Click Convert. Convertessa writes a DOCX file for each AZW3, mapping chapter structure to Word headings and stripping embedded metadata from the output.
Images, audio, video, documents, archives and eBooks — all converted natively, right on your Mac.
Pick a format you have — see everything Convertessa can turn it into.
Convert hundreds of files at once with per-type group defaults and individual overrides.
First-class support for HEIC, AVIF and WebP — encode and decode, both ways. Read JPEG XL and a dozen more modern formats too.
Drop files anywhere on the window. Native, instant, and exactly what you’d expect on a Mac.
Dial in compression, resolution and bitrate. Keep originals pristine or shrink for sharing.
Never overwrite a file by accident. Convertessa appends safe suffixes automatically.
Every job is logged locally. Re-run a previous conversion or revisit recent outputs in a click.
Bundle your converted files straight into a single ZIP, TAR or 7z — packaged and ready to share the moment a job finishes.
Right-click any file in Finder and choose Convert. A Quick Action handles it on the spot — no need to open the app first.
Shrink Convertessa to a tidy mini window that tucks into a corner — just a drop zone and a format picker for quick, one-off conversions.
No cloud. No account. No upload. Every conversion happens entirely on-device, using the power already in your Mac. What you convert is nobody’s business but yours.
Script conversions, wire them into your build, or batch a folder from the terminal. The same engine, no GUI required.
Read the full CLI documentation →Shrink Convertessa down to a small, focused window — drop, convert, done, with your recent conversions one click away.
macOS 14+ · Apple Silicon & Intel
New formats, new features, and fixes — every release, on the record.
Yes. Convertessa maps the AZW3 heading hierarchy into Word's built-in heading styles, so chapters and sections appear as proper headings in the DOCX. The exact result depends on how the original e-book was structured by its publisher.
No. Conversion runs entirely on your Mac using Convertessa's local engine. Your AZW3 files never leave your machine.
Yes. Run convertessa /path/to/books/ --to docx and Convertessa processes every AZW3 in the folder, producing a matching DOCX alongside each original.