Your files stay on your Mac.
Typst is a markup-based document language that compiles natively to PDF — but sometimes you need the same content on the web. Convertessa reads your .typ source files and renders them as self-contained HTML documents, preserving headings, paragraphs, lists, and inline formatting. Everything runs locally on your Mac; your files never leave the machine.
Drag one .typ file or an entire folder of documents into Convertessa. Batch mode processes every file in one pass.
Choose HTML from the output format list. Convertessa will render each Typst document into a self-contained HTML file.
Click Convert. Your HTML files appear in the output folder instantly — 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. Convertessa maps Typst headings, paragraphs, lists, and inline styles to their HTML equivalents, so the logical structure of your document carries over intact.
No. Convertessa strips embedded metadata during conversion, so the output HTML contains only rendered document content — no author details or hidden fields.
Yes. Drop a folder onto Convertessa or use the CLI batch command (convertessa ./docs/ --to html) to convert every .typ file in one pass.