Your files stay on your Mac.
Apple CAF is an Apple-specific container that most non-Apple software cannot open. Converting to WAV unwraps the audio into uncompressed PCM — a format every DAW, editor, and media player understands. No re-encoding happens, so the waveform comes out exactly as it went in.
Drag one file or an entire folder into Convertessa. Everything stays on your Mac — no file is uploaded anywhere.
Choose WAV from the output format list. WAV stores audio as uncompressed PCM, so no quality is sacrificed in the process.
Click Convert. Convertessa processes every CAF file locally and writes a matching WAV file for each one.
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.
Not when the CAF file contains uncompressed PCM audio. Convertessa moves the raw audio data into the WAV container without re-encoding, so the waveform is bit-for-bit identical to the source.
Yes. Run convertessa /path/to/folder --to wav and Convertessa converts every CAF file in the folder, saving a WAV file alongside each original.
CAF is an Apple-proprietary container. Windows DAWs, Linux audio tools, and most web-based players do not support it. WAV is a universal format that opens in virtually every audio application on every platform.