Your files stay on your Mac.
Convertessa reads your Phase One IIQ files and writes AVIF — a modern image format with strong quality-to-file-size ratios. Set the quality level to balance visual fidelity and output size, and strip embedded EXIF metadata in the same pass. Every file is processed locally; nothing is uploaded.
Drag one or more IIQ files — or an entire shoot folder — onto Convertessa. The app reads Phase One RAW data directly, no pre-export required.
Pick AVIF from the output format list. Set the quality slider to control how aggressively the encoder compresses each image — lower values give smaller files; higher values preserve more detail.
Click Convert. Convertessa writes AVIF files alongside your originals, preserving the original resolution. For a whole folder, all IIQ files inside are converted in one batch.
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.
No. Convertessa runs entirely on your Mac. Your IIQ files are never sent to a server or cloud service — conversion happens locally and the output stays on your disk.
Yes. Pass a folder path in the CLI (convertessa ./shoot/ --to avif) or drag a folder onto the app window. Every IIQ file inside is converted to AVIF in a single batch.
Convertessa strips EXIF and embedded metadata from the output by default. If your workflow requires clean files for web delivery or client sharing, no extra step is needed.