Your files stay on your Mac.
JATS XML encodes journal article structure — sections, citations, figures, and metadata — in a machine-readable format used by publishers and repositories. Convertessa reads that markup and writes a .tex file with equivalent LaTeX commands, preserving headings, inline math, and reference lists. Files never leave your Mac.
Drag one .jats file or an entire folder of articles onto Convertessa. Batch mode processes every file in the folder in one pass.
Choose LaTeX from the output format list. Convertessa maps JATS elements — sections, equations, and bibliographic entries — to their LaTeX equivalents.
Click Convert. Each input file produces a .tex file ready to open in your LaTeX editor or feed into a build pipeline.
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. MathML blocks inside JATS are converted to equivalent LaTeX math environments, so inline and display equations appear correctly in the output .tex file.
Convertessa maps JATS <ref-list> entries to LaTeX bibliography commands, preserving author, title, journal, and DOI fields in the output.
Yes. Pass a folder path to Convertessa and every .jats file inside is converted to a separate .tex file in one command: convertessa ./articles/ --to tex.