Your files stay on your Mac.
Convertessa reads your reStructuredText source files and writes them out as Emacs Muse documents, mapping headings, lists, inline markup, and code blocks to their Muse equivalents. The conversion runs entirely on your Mac — no file is uploaded anywhere. You can process a single document or drop a whole folder and convert everything at once.
Drag one or more .rst files — or an entire folder — into Convertessa.
Choose Emacs Muse from the output format list and Convertessa will prepare each file for conversion.
Click Convert. Convertessa writes the .muse files next to your originals. No cloud, no waiting, no upload.
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. Convertessa maps reStructuredText heading levels, bullet lists, numbered lists, inline code, and emphasis to their Emacs Muse equivalents. Embedded metadata is stripped from the output.
Yes. Drop the folder into Convertessa or point the CLI at the directory with convertessa ./docs --to muse. Every .rst file in the folder is converted in one pass.
No. Convertessa runs offline on your Mac. Your .rst files are never sent anywhere — conversion happens entirely on your machine.