Your files stay on your Mac.
OPML encodes hierarchical outlines in XML — feed lists, podcast subscriptions, and structured documents. Convertessa reads that tree and renders it as Djot markup, mapping each outline node to the appropriate Djot construct. Everything runs locally on your Mac; no file ever leaves the machine.
Drag one OPML file or a whole folder of them onto Convertessa. Batch mode processes every .opml file in the folder in a single pass.
Choose Djot from the output format list. Convertessa maps the OPML hierarchy — headings, nested nodes, and metadata — to Djot's section and list structure.
Click Convert. Your Djot files are written alongside the originals, ready to open in any text editor or pass into a Djot-aware publishing pipeline.
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.
Each level of nesting in the OPML tree maps to a corresponding Djot list or heading level, preserving the full hierarchy in the output document.
No. Convertessa converts entirely on your Mac. Your OPML files are never uploaded or sent to any server.
Yes. Drag a folder onto Convertessa or run convertessa ./outlines/ --to djot in the terminal to batch-convert every OPML file in one pass.