Your files stay on your Mac.
Convertessa reads your Emacs Muse files and rewrites them as AsciiDoc, mapping headings, lists, tables, and inline markup to their AsciiDoc equivalents. Everything runs locally — files never leave your machine. Convert a single document or a whole project directory in one step.
Drag one .muse file or an entire project folder into Convertessa. It reads every Muse document in the tree.
Choose AsciiDoc from the output format list. Convertessa maps Muse directives and markup to AsciiDoc syntax, preserving your document structure.
Click Convert. Your .adoc files land in the destination folder, ready for Asciidoctor or any AsciiDoc toolchain.
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.
Headings (* Title, ** Section), unordered and ordered lists, bold, italic, inline code, and hyperlinks are all carried over as their AsciiDoc counterparts. Muse directives with no AsciiDoc equivalent are preserved as comment blocks so nothing is silently dropped.
Yes. Drag the project folder onto Convertessa or run convertessa ./project/ --to adoc to batch-convert every .muse file in the directory tree. Output files are written to a matching folder structure.
No. Convertessa runs entirely on your Mac. Your .muse files are read and written locally — nothing is sent to a server or the cloud.