Your files stay on your Mac.
JATS XML encodes scholarly articles as structured tags — sections, abstracts, references, inline formatting. Convertessa rewrites those tags as Textile markup, turning verbose XML into a compact, human-readable format. Files never leave your Mac; the conversion runs entirely offline.
Drag one or more .jats files onto Convertessa, or click to browse. You can also drop an entire folder to queue every JATS file inside it.
Pick Textile from the output format list. Convertessa maps JATS structural tags — headings, emphasis, links, lists — to their Textile equivalents.
Hit Convert. Each .jats file is written out as a .textile file in the same folder. Embedded metadata is stripped; the article body is preserved as clean Textile markup.
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.
JATS XML metadata elements (author lists, journal identifiers, publication dates) are not carried into Textile output. The converter focuses on the article body — sections, paragraphs, and inline formatting — and strips structural metadata from the result.
Convertessa targets the body content shared across JATS flavours (JATS 1.x, NLM 2.3). Tags it cannot map to a Textile equivalent are unwrapped so their text content is still preserved.
Yes. Pass a folder path instead of a single file — convertessa ./articles --to textile — and every .jats file inside is converted in one pass without any extra steps.