Your files stay on your Mac.
Convertessa reads each .dbk file and rewrites its structure as AsciiDoc markup — sections, titles, paragraphs, lists, tables, and admonitions all map to their AsciiDoc equivalents. Inline formatting and nesting are preserved. Everything runs locally on your Mac; your files are never uploaded.
Drag one .dbk file or an entire folder into Convertessa. Batch mode processes every DocBook file in the folder in a single pass.
Choose AsciiDoc from the output list. Convertessa maps DocBook elements — chapters, sections, admonitions, lists, and tables — to their AsciiDoc counterparts.
Click Convert. Your .adoc files appear next to the originals. No internet connection required.
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.
Convertessa maps part, chapter, and nested section elements to AsciiDoc heading levels, preserving the depth of your document structure.
No. Convertessa runs entirely offline on your Mac. Your .dbk files never leave your machine — the conversion happens locally with no server involved.
Yes. Drop a folder onto Convertessa or run convertessa ./docs/ --to adoc to convert every DocBook file in the directory in one pass.