Your files stay on your Mac.
Converting a Jupyter Notebook to Typst maps each markdown cell to Typst prose and each code cell to a fenced code block inside a structured .typ file. The result is ready for the Typst compiler without manual reformatting. Conversion runs entirely on your Mac — notebooks never leave your machine.
Drag one or more .ipynb files into Convertessa, or point it at a folder to queue an entire project of notebooks at once.
Select Typst from the output list. Convertessa will render each notebook's markdown prose, code cells, and raw outputs as valid Typst markup.
Click Convert. A .typ file is written beside each source notebook, ready to open in the Typst compiler or any text 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.
Markdown cells become Typst prose, code cells become fenced code blocks, and raw or output cells are preserved as preformatted text — nothing is silently dropped.
No. Convertessa converts entirely offline. Your notebooks stay on your machine and no internet connection is required at any point.
Yes. Drop an entire directory onto Convertessa or run convertessa ./notebooks/ --to typ to process every .ipynb file in one pass.