Your files stay on your Mac.
Convertessa reads your .rst source files and renders them into OpenDocument Text (.odt) documents, translating headings, paragraphs, lists, and inline markup into editable ODT structure. The conversion runs entirely on your Mac—files never leave the machine. Drop a single file or an entire folder; Convertessa processes each .rst in one pass.
Drag one or more .rst files—or an entire folder—onto the Convertessa window.
Choose OpenDocument Text from the output list. Convertessa will produce a conforming .odt file for each source document.
Click Convert. Your .odt files appear alongside the originals, ready to open in LibreOffice, Word, or any ODT-compatible editor.
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 RST section titles to the corresponding ODT heading styles (Heading 1, Heading 2, and so on), so your document hierarchy carries over intact.
Yes. You can pass --quality on the command line or adjust the quality slider in the app before converting.
No. RST comments are stripped from the .odt output. Directives that map to standard ODT constructs—code blocks, notes, warnings—are preserved as formatted paragraphs.