Your files stay on your Mac.
Convertessa reads JATS XML—the tag set used by scholarly publishers and PubMed—and writes each article out as AsciiDoc. Headings, paragraphs, body sections, and inline markup are mapped to their AsciiDoc equivalents. Metadata embedded in the JATS header is stripped from the output.
Drag one .jats file or an entire folder of articles onto the Convertessa window. All files stay on your Mac throughout.
Pick AsciiDoc from the output format list. Convertessa will write one .adoc file for every JATS source file.
Click Convert. Convertessa processes every file locally and saves the .adoc results alongside your originals.
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 core JATS structural elements—article title, abstract, body sections, paragraphs, lists, and inline emphasis—to their AsciiDoc equivalents. JATS-specific metadata such as journal IDs, ISSN, and processing instructions are not carried into the output file.
Yes. Drop a folder onto the Convertessa window, or run convertessa ./articles/ --to adoc from the terminal. Every .jats file in the folder is converted and saved as a .adoc file.
Convertessa runs entirely on your Mac. No file is uploaded to any server, and the conversion works fully offline.