Your files stay on your Mac.
TTA and WavPack are both lossless formats, so every audio sample survives the conversion untouched. Convertessa decodes your TTA files and re-encodes them as WavPack (.wv), a container with wider player and library support. Everything runs on your Mac — no file is ever uploaded.
Drag one TTA file or an entire folder onto Convertessa. The app reads each file locally; nothing leaves your Mac.
Pick WavPack from the output format list. Because WavPack is lossless, no quality setting is needed — the decoded audio is reproduced exactly.
Click Convert. Convertessa processes all files in parallel and writes the .wv output alongside your originals, or to whichever folder you specify.
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. TTA and WavPack are both lossless codecs, so the decoded audio is bit-for-bit identical to the original. Converting between them introduces no quality loss.
Never. All decoding and encoding happens locally on your Mac. Your audio files never leave your machine.
Yes. Drag a folder onto Convertessa and every TTA file inside is converted to WavPack in one pass. You can also use the CLI: convertessa /path/to/folder --to wv.