Your files stay on your Mac.
Convertessa reads your .adoc source and renders it as standards-compliant HTML, preserving headings, code blocks, callout lists, tables, and admonition blocks. Your files stay on your Mac—nothing is uploaded to a server. Drop a single file or a whole folder and every document is converted in one pass.
Drag one .adoc file or an entire folder into Convertessa. All files are read locally—nothing leaves your Mac.
Choose HTML from the output list. Convertessa will render each AsciiDoc source into a self-contained HTML file.
Click Convert. Your HTML files appear alongside the originals, ready to open in any browser or publish to a static site.
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 renders admonition blocks (NOTE, TIP, WARNING, CAUTION, IMPORTANT), callout lists, and literal code blocks into the corresponding HTML elements so the structure of your document is maintained exactly as authored.
Yes. Point Convertessa at a folder and every .adoc file inside is converted to HTML in one pass. From the command line: convertessa ./docs/ --to html.