Your files stay on your Mac.
Convertessa reads your Kodak .dcr files and renders them as WebP images at full sensor resolution. Choose a quality level to balance file size against retained detail, then export a single shot or an entire shoot in one pass. All processing happens locally — nothing is uploaded.
Drag one or more .dcr files — or a whole folder — into Convertessa. Your originals stay on your Mac and are never sent anywhere.
Choose WebP from the output list, then set your preferred quality level. Higher values preserve more detail; lower values produce smaller files.
Click Convert. Convertessa processes every file locally, strips EXIF metadata, and saves the WebP images at the original sensor resolution.
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 each .dcr file at its native sensor resolution. No resampling is applied.
Yes. Convertessa strips all EXIF and embedded metadata from the output — camera model, GPS coordinates, and lens info are not carried into the exported WebP.
Yes. Drag the folder into the app, or run convertessa ./shoot/ --to webp from the terminal. Every .dcr file inside is converted in a single pass.