Your files stay on your Mac.
Convertessa reads each .fodp file — LibreOffice's flat XML presentation format — and writes a .pptx file ready to open in Microsoft PowerPoint or any compatible app. Slides, text, and embedded images transfer across; files never leave your Mac. Set quality to control how embedded images are encoded in the output.
Drag one .fodp file or an entire folder of presentations onto Convertessa. Nothing is uploaded — all processing happens on your Mac.
Choose PowerPoint (.pptx) from the output format list. Set quality to control how embedded images are encoded in the resulting file.
Click Convert. Convertessa writes a .pptx file alongside each source file, ready to open in Microsoft PowerPoint.
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 entirely offline — your .fodp files are read and written locally. No upload, no cloud service, no internet connection required.
Yes. Drop a folder onto Convertessa and it converts every .fodp file inside. From the command line: convertessa ./slides/ --to pptx.
PowerPoint files embed images internally. The quality setting controls how those images are encoded — higher quality preserves more detail at the cost of a larger file.