Your files stay on your Mac.
MPEG-TS is the container format used in broadcast television, HLS live-streaming pipelines, and DVB delivery. Converting your MP4 to MPEG-TS produces a .ts file that streaming servers and broadcast encoders can ingest directly. Convertessa does the whole job on your Mac — no upload, no account, no internet required.
Drag a single MP4 or an entire folder into Convertessa. All processing happens locally — nothing leaves your Mac.
Select MPEG-TS from the output list. Because MPEG-TS supports lossy encoding, you can set quality before converting to balance file size against fidelity.
Click Convert. Convertessa processes every file in one pass, preserves resolution, and strips metadata. Your .ts files are saved alongside the originals.
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. Convertessa runs entirely offline on your Mac. Files never leave your machine — there is no upload step, no cloud processing, and no account required.
Yes. Drop a folder onto Convertessa and it converts every MP4 inside in a single batch. From the command line: convertessa /path/to/folder --to ts.
Yes. Convertessa preserves resolution when converting MP4 to MPEG-TS. Use the quality setting to control encoding fidelity if you need to trade file size against quality.