Your files stay on your Mac.
Convertessa reads your .md files — headings, paragraphs, lists, links, and inline code — and writes them out as .rtf documents compatible with Word, Pages, LibreOffice, and any RTF-capable editor. Formatting maps directly to RTF character and paragraph styles, and any embedded images are written at the quality level you choose. Everything runs on your Mac; nothing is uploaded.
Drag one .md file or an entire folder into Convertessa. Batch mode processes every Markdown file in the folder in a single pass, preserving the original filenames.
Choose Rich Text (RTF) from the output format list. If your Markdown contains embedded images, set quality to control how they are stored in the output file.
Click Convert. Convertessa writes .rtf files alongside the originals — or to a destination folder of your choice — without uploading anything to a server.
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.
The output is standard RTF 1.x, readable by Microsoft Word, Apple Pages, LibreOffice Writer, macOS TextEdit, and any other RTF-capable application.
Yes. Headings become RTF heading styles, bold and italic spans map to the corresponding RTF character properties, and ordered and unordered lists are converted to RTF list structures.
No. Convertessa runs entirely on your Mac. Your Markdown files are read locally and the .rtf output is written locally — nothing leaves your machine.