Your files stay on your Mac.
Convertessa reads your .mrw files directly — no import step, no external tool — and encodes each frame as an AVIF image. AVIF delivers sharp, compact files at the quality level you choose. Everything runs on your Mac; nothing is uploaded.
Drag one .mrw file or an entire folder of Minolta RAW files onto Convertessa. The app reads them locally; nothing is uploaded.
Pick AVIF from the output list, then set the quality level to balance file size against detail.
Click Convert. Convertessa processes every file and saves the AVIF images alongside the originals.
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 strips embedded metadata — including camera make, lens info, and GPS coordinates — from every output AVIF file.
Yes. Drop a folder onto the app or run convertessa ./photos/ --to avif in the terminal. Convertessa processes every Minolta RAW file in the folder in one pass.
A quality value of 60–75 suits most shots — solid visual fidelity at a fraction of the RAW file size. Raise it toward 100 when you need to preserve fine highlight or shadow detail.