Your files stay on your Mac.
Converting a Jupyter Notebook to Org Mode maps each code cell to a #+BEGIN_SRC block, markdown cells to prose, and top-level headings to Org headlines. The resulting .org file is plain text—no Jupyter server needed to read it. Notebook metadata is stripped from the output file.
Drag one or more .ipynb files into Convertessa, or point it at a folder to queue a whole batch at once.
Pick Org Mode from the output format list. Every queued notebook will be converted to .org.
Click Convert. Each notebook is processed locally—nothing is uploaded. Your .org files land in the destination folder when done.
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.
Cell outputs—print results, error traces, display data—are not carried into the .org file. Only source code and markdown content are converted.
No. Convertessa converts .ipynb to .org entirely on your Mac without Emacs, a Jupyter server, or any network connection.
Yes. Drop a folder onto Convertessa or run convertessa ./notebooks/ --to org to convert every .ipynb file in that directory in one pass.