Your files stay on your Mac.
Convertessa reads your LaTeX source and rewrites it as Emacs Muse markup, mapping headings, emphasis, and links to their Muse equivalents. The output files open immediately in Emacs Muse mode for editing or publishing. Your .tex files are processed locally and never uploaded.
Drag one .tex file or an entire folder onto Convertessa. Batch mode converts every LaTeX document in the folder in a single pass.
Pick Emacs Muse from the output format list. Convertessa targets .muse with no auto-detection — you stay in control of the output.
Click Convert. Convertessa writes .muse files alongside your originals. No internet connection required.
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 maps common LaTeX elements — section headings (\section, \subsection), bold, italic, and hyperlinks — to their Muse counterparts. Custom macros or packages with no Muse equivalent are preserved as plain text.
Yes. Drop the folder onto Convertessa or run convertessa /path/to/folder --to muse. Every .tex file found is converted and the resulting .muse files are written next to the originals.
Yes. Convertessa removes embedded metadata from the converted document file so the .muse output contains only the markup content.