Your files stay on your Mac.
Converting a .txt file to Texinfo wraps your content in the GNU documentation format — giving it the markup structure needed to produce info pages, HTML, or printable PDFs from a single source. Convertessa generates a valid .texi document complete with the required header and footer directives. Every file is processed locally; nothing leaves your Mac.
Drag one .txt file or an entire folder into Convertessa. Batch mode picks up every file at once, so you can convert a whole documentation tree in a single pass.
Choose Texinfo from the output format list. Convertessa maps your plain-text content into a well-formed .texi document ready for makeinfo or texi2pdf.
Click Convert. Your .texi files appear instantly in the destination folder — no internet connection, no upload, no waiting.
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. The output includes the required \input texinfo preamble, @setfilename, and a closing @bye directive, so each .texi file can be passed directly to makeinfo or texi2pdf without manual editing.
Yes. Drop the folder onto Convertessa or run convertessa ./docs/ --to texi in the terminal. Every .txt file in the folder is converted to its own .texi document in one pass.
Yes. Convertessa converts files entirely on your Mac. No file is sent to a server at any point in the process.