Your files stay on your Mac.
Convertessa reads each PSD file, flattens its layers into a single composite image, and writes a lossless PNG. Resolution is preserved exactly, and embedded metadata is stripped. Nothing is uploaded — conversion runs entirely on your Mac.
Drag a single PSD or an entire folder onto Convertessa. The app queues every .psd file it finds, including nested subfolders.
Pick PNG from the output format list. PNG is lossless — every pixel of the flattened composite is retained, and alpha transparency is carried through.
Hit Convert. Convertessa flattens each PSD, strips embedded metadata, and writes a PNG file beside the original — all locally on your Mac, no internet 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. PNG supports a full alpha channel, so any transparent regions in the flattened composite are preserved in the output file.
No. Convertessa writes new PNG files alongside your originals and never touches the source PSD.
Yes. Drop a folder onto Convertessa or pass a directory path in the CLI (convertessa ./designs/ --to png) and every PSD inside is converted in one batch.