Your files stay on your Mac.
Textile is a lightweight markup language that compiles to HTML. Convertessa parses your .textile files and resolves headings, paragraphs, lists, links, and inline formatting into standard HTML output. Everything runs locally—your files never leave your Mac.
Drag one or more .textile files onto Convertessa, or point the CLI at a folder to queue a batch in one go.
Choose HTML from the output format list. Convertessa will write one .html file for each .textile source.
Hit Convert. Convertessa parses the Textile markup and writes clean HTML files alongside the originals—no internet connection required.
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 a folder path to the CLI (convertessa ./content/ --to html) and Convertessa processes every .textile file inside it, writing a matching .html file for each one.
No. Convertessa runs entirely on your Mac. Your Textile files are read and written locally—nothing is sent to a remote server at any point.
Convertessa parses standard Textile markup including tables, block quotes, inline attributes, and phrase modifiers, producing the corresponding HTML elements in the output file.