Your files stay on your Mac.
Convertessa reads your .rst source and renders headings, bullet lists, bold, italics, and hyperlinks into Rich Text that Word, Pages, and LibreOffice open natively. The conversion runs entirely on your Mac—no file is ever uploaded or transmitted. Process a single file or an entire docs folder in one pass.
Drag one .rst file or a whole folder into Convertessa. The app reads your markup locally—nothing leaves your machine.
Pick Rich Text from the output list. Optionally set quality to control output fidelity before converting.
Click Convert. Convertessa writes .rtf files alongside your originals with document structure intact and metadata stripped.
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 reStructuredText directives—section headings, bullet and numbered lists, bold, italic, and inline code—to their Rich Text equivalents so the document structure survives the conversion intact.
Yes. Pass the folder path to the CLI (convertessa ./docs --to rtf) or drag the folder into the app window. Every .rst file inside is converted in one batch.
No. Convertessa runs entirely offline on your Mac. Your files never leave your machine at any point during conversion.