Your files stay on your Mac.
Convertessa decodes the raw sensor data from each SR2 file and writes it to a lossless TIFF, preserving full resolution and colour depth. Embedded EXIF metadata is stripped during the write, so output TIFFs contain image data only. Every step runs locally—no file ever leaves your Mac.
Drag one SR2 file or an entire folder onto Convertessa. The app lists every file queued and shows a preview of what will be converted.
Choose TIFF from the output format list. Convertessa will decode each SR2 and write a full-resolution, lossless TIFF for every file in the queue.
Click Convert. Convertessa processes each file on your Mac and saves the TIFFs alongside the originals. No internet connection required at any point.
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 decodes the complete sensor data from each SR2 file and writes it to TIFF at the original resolution. No resampling or downsizing occurs.
No. Convertessa strips EXIF and other embedded metadata during conversion. The resulting TIFF contains image data only.
Yes. Drop a folder onto Convertessa or use the CLI batch form. Every SR2 file in the folder is converted to TIFF in a single pass, with no upload required.