Your files stay on your Mac.
Converting an HTML file to plain text strips every tag, attribute, script block, and style sheet, leaving only the visible text content. Convertessa runs the conversion locally on your Mac — your files never leave the machine and no browser or runtime is required. Batch mode processes an entire folder of .html files in a single pass.
Drag one .html file or an entire folder into Convertessa. All processing happens locally; nothing is uploaded.
Choose Plain Text from the output list. Convertessa will strip all markup and extract only the raw text content from each file.
Click Convert. Convertessa removes every tag, script, and style block and writes a clean .txt file alongside each source.
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. All <script> and <style> blocks are stripped before the .txt file is written, so the output contains only visible text content.
Block-level elements like paragraphs, headings, and list items are mapped to line breaks in the output, preserving the logical reading order of the original document.
Yes. Point Convertessa at a folder and it converts every .html file inside, writing a matching .txt file next to each source — no manual file-by-file work needed.