Your files stay on your Mac.
Rich Text Format stores formatted prose in a container readable by most word processors. Converting to AsciiDoc rewrites that content as human-readable plain-text markup — headings, bold, lists, and links become native AsciiDoc syntax. The result is version-control-friendly source you can feed directly into Asciidoctor or Antora.
Drag one RTF file or an entire folder into Convertessa. Files stay on your Mac — nothing is uploaded to any server.
Pick AsciiDoc from the output list. Convertessa maps RTF formatting — headings, bold, italic, and lists — to the equivalent AsciiDoc markup.
Click Convert. Your .adoc files are written alongside the originals, ready to open in any text editor or feed into your Asciidoctor pipeline.
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, bold, italic, ordered and unordered lists, and inline links are mapped to their AsciiDoc equivalents. Embedded images are extracted and referenced with AsciiDoc image macros.
Yes. Pass a folder path to Convertessa and every RTF file inside is converted in one pass. The CLI equivalent is convertessa ./docs --to adoc.
Yes. Author name, revision history, and other document metadata embedded in the RTF are removed during conversion, leaving clean AsciiDoc output.