Your files stay on your Mac.
Convertessa reads your .rtf files and rewrites their content as clean Djot markup. Headings, paragraphs, bold, and italic carry across; proprietary RTF formatting and embedded metadata are stripped away. The result is a plain-text .djot file you can open, edit, and version-control anywhere.
Drag one or more .rtf files—or an entire folder—onto Convertessa. No upload required; everything runs locally on your Mac.
Choose Djot from the output format list. Convertessa will convert each file to a .djot markup file.
Click Convert. Convertessa writes the .djot files alongside your originals. RTF metadata is stripped; document text and structure are preserved.
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.
Yes. Convertessa maps RTF formatting—headings, bold, italic, and paragraph structure—to equivalent Djot markup. Proprietary RTF styles that have no Djot counterpart are stripped cleanly.
No. Convertessa converts files entirely on your Mac. Nothing is sent to a server or cloud service.
Yes. Drop a folder onto Convertessa or use convertessa *.rtf --to djot from the command line to batch-convert every .rtf file in one step.