Your files stay on your Mac.
WavPack stores audio losslessly; AAC encodes it into a compact, widely-supported format that plays natively on iOS, Android, browsers, and most media players. Convertessa reads your .wv files directly and writes AAC output — no cloud, no upload, no account. You choose the quality level and your files never leave your Mac.
Drag a single .wv file or an entire folder of WavPack audio into Convertessa. Batch conversion processes every file in one pass.
Choose AAC from the output list and set your preferred quality level. Higher quality keeps the output closer to the original; lower quality shrinks files further.
Click Convert. Convertessa encodes each file locally, preserving resolution and stripping embedded metadata. Your AAC files are ready when the progress bar clears.
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.
AAC is a lossy format, so some audio data is discarded during encoding. You control the trade-off: choose a higher quality setting to keep the output close to the lossless source, or a lower setting to minimise file size. The original .wv file is never modified.
Yes. Drop a folder onto Convertessa or pass a directory path in the CLI (convertessa ./album/ --to aac) and every .wv file inside is converted in a single batch.
Yes — Convertessa strips embedded metadata from the output file during conversion. If you need to retain tags, apply them with a dedicated tagging tool after conversion.