Your files stay on your Mac.
MPEG-TS is a broadcast-grade container that bundles audio, video, and timing data into a single stream. Converting to WavPack pulls the audio track out and stores it in a lossless, open format — decoded output is bit-for-bit identical to the source. Your files never leave your Mac; no upload, no network required.
Drag one .ts file or an entire folder into Convertessa. Batch mode queues every file in one pass — no size limit.
Choose WavPack from the output format list. Convertessa targets the audio stream inside each transport stream and encodes it losslessly to .wv.
Hit Convert. Each .ts file becomes a .wv file with the original audio preserved exactly — original resolution intact, EXIF and embedded metadata stripped.
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. WavPack is a lossless format — the decoded audio is bit-for-bit identical to the source track inside the transport stream. Nothing is discarded.
Yes. Drag a folder onto Convertessa or run convertessa /folder --to wv from the terminal. Every .ts file in the folder is converted in a single batch.
No. Convertessa runs entirely on your Mac. Your .ts files never leave your machine — no internet connection is required and no data is sent anywhere.