Your files stay on your Mac.
Converting a .txt file to DocBook wraps your content in structured DocBook XML, ready for technical documentation toolchains. Convertessa runs entirely on your Mac — your files never leave your machine. Convert a single file or a whole folder of .txt files in one pass.
Drag one or more .txt files onto Convertessa, or point it at a folder to queue the whole batch.
Pick DocBook from the output format list. Convertessa will structure each text file as valid DocBook XML.
Click Convert. Convertessa processes everything locally and writes .dbk files alongside your originals — nothing is uploaded.
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. The conversion runs entirely on your Mac using a local engine. Your .txt files never leave your machine.
Yes. Pass a folder path — convertessa ./docs/ --to dbk — and Convertessa converts every .txt file inside in a single batch.
Convertessa wraps your plain text in valid DocBook XML, producing a structured .dbk file with an <article> root and paragraph elements — ready to feed into DocBook-aware publishing pipelines.