Your files stay on your Mac.
Man pages are written in roff macro languages such as mdoc or man macros. Converting them to Djot produces clean, human-readable lightweight markup you can edit, version in Git, or publish without a troff toolchain. Convertessa runs the conversion locally — no upload, no internet required.
Drag individual .man files or an entire directory of man pages onto Convertessa. Batch mode processes every file in the folder in one pass.
Pick Djot from the output format list. Convertessa will convert each roff document to a .djot file, mapping section headings, lists, and inline formatting to their Djot equivalents.
Click Convert. Your Djot files appear in the output folder instantly, ready to open in any text editor or commit to version control.
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. Section headings (NAME, SYNOPSIS, DESCRIPTION, and so on), lists, and inline formatting such as bold and italic are mapped to their Djot equivalents. Raw roff macros with no direct Djot counterpart are stripped rather than left as noise.
Yes. Drag the folder onto Convertessa or run convertessa ./manpages/ --to djot to batch-convert every file in one pass. Output files are written to a folder you specify.
No. Convertessa is a native Mac app that runs entirely offline. Your files never leave your machine.