Your files stay on your Mac.
Convertessa reads your .tex source files and renders them into valid EPUB ebooks — no internet connection required, no file upload. Embedded images are preserved at their original resolution. Because EPUB supports lossy image encoding, you can set quality to balance fidelity against output file size.
Drag one or more .tex files — or an entire project folder — onto Convertessa. All source files stay on your Mac.
Choose EPUB from the output format list. Optionally set quality for images embedded in the output file.
Click Convert. Convertessa processes everything locally and saves your .epub files alongside the originals.
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. Pass the folder path and Convertessa finds and converts every .tex file inside it — convertessa ./my-project --to epub.
Never. Convertessa runs entirely offline; your source files are processed locally and are never uploaded to any server.
Embedded images are preserved at their original resolution inside the EPUB. You can set quality to control how those images are encoded in the output file.