Your files stay on your Mac.
Convertessa reads each CSV file and lays the tabular data out as a formatted PDF document — rows, columns, and all. Conversion runs entirely on your Mac; no file ever leaves your machine. Drag in a single CSV or an entire folder and set output quality before converting.
Drag one or more CSV files — or an entire folder — onto Convertessa. Every row and column is read locally; nothing is sent to a server.
Pick PDF from the output format list. Set the output quality to control how the document is rendered before you convert.
Click Convert. Convertessa writes a PDF beside each source CSV, laying out your tabular data as a clean, formatted document.
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 runs entirely on your Mac. Your files never leave your machine — conversion happens offline with no internet connection required.
Yes. Drop a folder onto Convertessa or run convertessa ./data/ --to pdf in the CLI. Every CSV in the folder is converted in one pass.
The quality setting controls how content inside the PDF is rendered and compressed. Lower values produce smaller files; higher values preserve more fidelity in the output document.