Your files stay on your Mac.
Convertessa reads your .muse files and rewrites the markup as reStructuredText (.rst), translating headings, lists, links, and inline formatting into RST equivalents. The conversion runs entirely on your Mac — no file ever leaves your machine. Drop a single document or a whole project folder and get RST output ready for Sphinx or any RST-aware toolchain.
Drag one .muse file or an entire folder of them into Convertessa. Batch mode processes every .muse file in the folder in a single pass.
Pick reStructuredText from the output format list. Convertessa targets the format you select — it never auto-detects or guesses the output.
Click Convert. Your .rst files are written to the destination folder. Files never leave your Mac — the entire conversion runs offline.
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 converts headings, paragraphs, bulleted and numbered lists, definition lists, links, bold, italic, and monospace inline spans. The resulting .rst file is ready to feed directly into Sphinx or docutils.
Yes. Point Convertessa at a folder and it processes every .muse file inside, writing a matching .rst file for each one. Use the CLI for scripted or CI pipelines: convertessa ./docs/ --to rst.
No. Convertessa runs fully offline on your Mac. Your documents are read and written locally — nothing is sent to a server or third-party service.