Your files stay on your Mac.
OpenDocument Text files bundle content with styles, tables, and embedded objects. Converting to Plain Text extracts the readable characters and discards all markup, producing a clean .txt file with no hidden structure. The conversion runs entirely on your Mac—no file is uploaded anywhere.
Drag one ODT file or an entire folder onto Convertessa. Batch mode processes every ODT in the folder in a single pass.
Select Plain Text from the output format list. Convertessa will extract the document text and write a UTF-8 .txt file for each source.
Click Convert. Convertessa strips formatting, tables, and metadata, then saves each .txt file alongside the original. EXIF and document metadata are not carried over.
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. Convertessa maps ODT paragraph boundaries to newlines in the output file, so the logical flow of the document is maintained even without formatting.
Table cells and list items are flattened to lines of text in reading order. The cell content is preserved; borders, shading, and indentation are not.
No. Plain Text cannot carry binary data, so embedded images are dropped. Only the textual content of the document is written to the output file.