Your files stay on your Mac.
Convertessa reads the MPEG-2 video and AC-3 audio streams packed inside each VOB file and rewraps them into an MP4 container. The conversion runs entirely on your Mac — files never leave your machine. Set quality to control output file size, or drop a whole folder to batch-convert every VOB at once.
Drag one or more .vob files — or an entire DVD folder — onto Convertessa. Everything stays on your Mac; nothing is uploaded.
Choose MP4 from the output format list. Set quality to balance file size against visual fidelity before you convert.
Click Convert. Convertessa processes each VOB locally and writes an .mp4 alongside the original. Embedded metadata is stripped from the output.
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.
A VOB (Video Object) file is the container format used on DVD discs. It holds multiplexed MPEG-2 video, AC-3 or MPEG audio, subtitles, and navigation data. Convertessa extracts the video and audio streams and rewraps them into a standard MP4 container.
Yes. Convertessa strips EXIF and embedded metadata from every output MP4 file.
Yes — drop an entire folder onto Convertessa or pass the folder path to the CLI: convertessa /path/to/dvd-folder --to mp4. Every VOB file inside is converted in one pass.