Your files stay on your Mac.
Convertessa parses each .rst file and writes a .ipynb Jupyter Notebook, mapping headings and text sections to Markdown cells and code-block directives to executable code cells. The result opens directly in JupyterLab, VS Code, or any compatible notebook environment. Your files stay on your Mac the entire time—nothing is uploaded.
Drag one .rst file or an entire project folder onto Convertessa. Batch mode converts every .rst file in the folder in a single pass, preserving your directory layout.
Choose Jupyter Notebook from the output format list. Convertessa will write one .ipynb file for each .rst source, with cells ordered to match the original document structure.
Click Convert. Each .ipynb lands next to its source file, created entirely offline—no account, no upload, no internet connection required.
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.
Headings and text paragraphs become Markdown cells. RST code-block and code directives become executable code cells, with any declared language hint carried through to the cell metadata.
Yes. Drop the folder onto Convertessa or run convertessa ./docs --to ipynb to process every .rst file in one pass. Each source file produces a matching .ipynb in the same directory.
Convertessa strips document-level metadata from .rst sources during conversion. The .ipynb output contains only the cell content derived from your markup, with no embedded author, date, or field-list metadata.