Your files stay on your Mac.
Convertessa reads your .md source files and rewrites their syntax as valid .rst, turning ATX headings, fenced code blocks, and inline formatting into the section underlines, directives, and roles that Sphinx and Docutils expect. Every file is processed locally — nothing is uploaded, nothing leaves your Mac. Drop a single file or a whole docs folder and convert in one pass.
Drag one or more .md files — or an entire folder — onto Convertessa. Batch mode queues every file at once.
Choose reStructuredText from the output format list. Convertessa targets standard RST compatible with Sphinx and Docutils.
Click Convert. Your .rst files are written alongside the originals. No account, no cloud, no upload — processing stays on your Mac.
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. ATX headings are mapped to RST section underlines and fenced code blocks become .. code-block:: directives, so the converted file works with Sphinx and Docutils without manual editing.
Yes. Drop a folder onto Convertessa or run convertessa *.md --to rst to process every Markdown file in one pass.
Convertessa removes embedded metadata from the source files during conversion, producing clean .rst output.