SeatbeltBETA
The fast, modern file transfer utility for creatives.
Built for speed
Seatbelt’s blazing-fast transfer engine is finely tuned to squeeze every drop of performance out of macOS. The result is a high-performance engine for demanding media workflows. On a Mac, nothing else comes close.
Persistent Transfers
With Seatbelt you don't have to worry about stopping a transfer. You can resume your progress even across restarts, including partial checksums. Start that transfer in the field and finish it back in the office.
Checksum Verification
Speed means nothing without trust. Seatbelt verifies every single file using well known fingerprint hashes. It's also built around ASC MHL, an industry standard media hash list for file history and integrity.*
Sequence
With Sequences, you can create a cascading set of transfers. Maybe that fast SSD of yours becomes a jumping off point, sending your footage onward the moment it lands. Design waterfall sequences that flow from drive to drive, fan out to several at once, or a mix of both.
Search. Filter. Verify.
Seatbelt offers extensive logging, so you always know exactly what moved, when, and where. With the built in search and filtering, it's easy to follow even the smallest change in the biggest transfers.
Shortcuts
Seatbelt remembers where you work, recent paths and favorite destinations are always at your fingertips. No need to browse through Finder every time.
Seatbelt vs Finder
Finder is fast. Seatbelt is fast and tells you your files actually made it.
| Feature | Finder | Seatbelt |
|---|---|---|
| Fast copies | ✓ | ✓ |
| Every file verified with a checksum | — | ✓ |
| Searchable transfer logs and PDF reports | — | ✓ |
| ASC MHL chain of custody | — | ✓ |
| Transfer sequences across drives | — | ✓ |
Seatbelt is for filmmakers, editors, DITs, one-man bands and small shops. Compared with other offload tools, it's more flexible, fully native, faster and more intuitive.
Ready to move files
the right way?
Fast, verified transfers — built for professionals.
Join the public beta Requires macOS 26 or newer