Your files stay on your Mac.
Convertessa reads your .tex source and maps its content into Jupyter Notebook cells — prose and text become Markdown cells, LaTeX math notation is carried through inline. The resulting .ipynb opens directly in JupyterLab, Jupyter Notebook, or VS Code. Nothing is uploaded; conversion runs entirely on your Mac.
Drag one .tex file or an entire folder into Convertessa. You can also point the CLI at a directory for batch conversion. Files stay on your Mac throughout.
Choose Jupyter Notebook from the output format list. Convertessa maps each document section to the appropriate cell type in the resulting .ipynb.
Click Convert. Your .ipynb files appear in the output folder, ready to open in JupyterLab or VS Code without any manual cleanup.
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.
No. Convertessa runs fully offline on your Mac. Your .tex files never leave your machine during conversion.
Yes. Drop a folder into Convertessa, or run convertessa /path/to/folder --to ipynb on the command line to convert every .tex file in that directory in one pass.
LaTeX math expressions are carried into the Notebook cells as-is, so they render correctly in JupyterLab and VS Code with standard math support enabled.