Your files stay on your Mac.
DocBook is a semantic XML format for structured technical documentation. reStructuredText is the lightweight plain-text markup used by Sphinx, Python projects, and Read the Docs. Convertessa reads your .dbk files and writes clean .rst output directly on your Mac—nothing is uploaded.
Drag one .dbk file or an entire folder of DocBook files onto Convertessa. The app reads them locally; no internet connection is required.
Choose reStructuredText from the output format list. Convertessa will write one .rst file for each .dbk source file.
Click Convert. Convertessa writes .rst files alongside your originals and strips any embedded document 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.
No. Convertessa runs entirely offline. Your .dbk files are read and converted on your machine; nothing is sent to a server or cloud service.
Yes. Drop a folder onto Convertessa and every .dbk file inside is converted to .rst in one pass. You can also run convertessa ./folder/ --to rst from the terminal for the same result.
Convertessa strips embedded document metadata—such as author fields and creation timestamps—from the output .rst files.