Your files stay on your Mac.
Convertessa reads your Kodak DC RAW (.kdc) files and renders them to AVIF directly on your Mac — no uploads, no account required. Pick your quality setting and export single files or entire folders in one pass. EXIF and embedded metadata are stripped from every output file.
Drag one or more .kdc files into Convertessa, or select a folder to batch-convert everything inside.
Choose AVIF from the output format list and set your preferred quality level before converting.
Click Convert. Convertessa processes every file locally — your Kodak RAW files never leave your Mac.
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 renders the full-resolution image data from the .kdc file into AVIF — the output matches the resolution captured by the camera.
Yes. Convertessa strips EXIF tags, GPS coordinates, and all embedded metadata from every AVIF file it produces.
Yes. AVIF is a lossy format, so Convertessa lets you set the quality level before converting. Higher quality produces larger files; lower quality produces smaller ones.