Your files stay on your Mac.
Converting HTML to Markdown maps headings, links, bold, italics, and code spans from tag-based markup into their Markdown equivalents. Block elements such as paragraphs, blockquotes, and lists are preserved in structure. The conversion runs entirely on your Mac — files never leave your machine.
Drag one file or an entire folder of .html files into Convertessa. Batch mode processes every file in the folder in one pass.
Open the output format list and Choose Markdown (.md). Convertessa writes one .md file for each .html source.
Click Convert. Converted Markdown files land in the same folder as the originals, ready to open in any editor or static-site tool.
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. Inline tags such as <strong>, <em>, <code>, and <a> are mapped to their Markdown equivalents. Block-level tags like <table> that have no direct Markdown counterpart are kept as raw HTML, which most Markdown renderers support.
No. Convertessa strips embedded metadata during conversion — the output .md file contains only the document content.
Yes. Pass the folder path on the command line — convertessa ./site --to md — or drop the folder onto the Convertessa window. Every .html file inside is converted in a single batch run.