Your files stay on your Mac.
Converting HTML to Word produces an editable .docx file that maps your HTML structure — headings, paragraphs, lists, and inline formatting — to native Word styles. The conversion runs entirely on your Mac; your files are never uploaded to any server. Convertessa handles whole folders at once, so you can migrate a site's worth of HTML pages in a single command.
Drag one file or an entire folder of .html files onto Convertessa. Nothing is uploaded — conversion happens locally on your Mac.
Pick Word from the output format list. Convertessa maps each HTML file's headings, paragraphs, and inline styles to the corresponding .docx elements.
Click Convert. Your Word documents land in the same folder as the originals, ready to open in Microsoft Word or any compatible editor.
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 converts HTML to Word entirely on your Mac. Your files are never uploaded to any server.
Yes. Drag a folder onto Convertessa or run convertessa *.html --to docx in your terminal to batch-convert every HTML file in the current directory.
Convertessa maps HTML structure — headings, paragraphs, lists, bold and italic — to the corresponding Word styles in the .docx output. Complex CSS layouts may simplify to block content, but document hierarchy and text are preserved.