Smash (fromsmash.com) earned fans with a bold promise: no file size limit, even on the free tier. The catch appears when you actually send something big — free transfers above a threshold wait in a lower-priority queue, and every file spends up to 7 days on Smash's servers. If you like the "no limits" idea but not the asterisks, here's a genuinely unlimited alternative.
Smash's model, explained fairly
Smash is a store-and-forward service: your file uploads to their infrastructure, and your recipient downloads it within the availability window. Storage and bandwidth cost money, so the free tier makes trade-offs — larger transfers are deprioritized behind paying customers, and the 7-day retention is both a feature (download later) and a liability (your file sits on a server for a week).
For teams that need branded download pages and delivery tracking, Smash's paid tiers are a real product. But if your goal is simply moving a big file from A to B, now, free, the upload-store-download pipeline is overhead.
ZetaShare: no queue because there's no server
ZetaShare removes the pipeline. Your browser connects directly to your recipient's browser over an encrypted WebRTC channel, and the file streams across at whatever speed your connections support:
- No priority queue. There's no shared infrastructure to ration — your transfer runs at full speed from the first byte.
- No size threshold. 5 GB or 500 GB, the mechanism is identical.
- Zero retention. The file is never stored anywhere. When the transfer completes, no copy exists in between.
- No signup, no upsell. Open ZetaShare, drop your file, share the link.
- Encrypted end to end with DTLS 1.3, plus optional password protection and custom links.
Side-by-side comparison
| Smash (free) | ZetaShare | |
|---|---|---|
| Size limit | None (queued if large) | None (never queued) |
| Transfer speed | Deprioritized above threshold | Full connection speed |
| Server storage | Up to 7 days | Never |
| Recipient downloads later | Yes, within 7 days | No — live transfer |
| Password protection | Paid feature | Free |
| Account required | No | No |
The one thing Smash does that P2P can't
Asynchronous delivery. If your recipient won't be online until Thursday, Smash's 7-day window covers that; a live P2P transfer needs both sides present. That's the honest trade-off: convenience of storage versus the speed and privacy of never storing anything.
FAQ
Is ZetaShare really full speed for huge files? Yes — transfer speed is bounded only by the slower side's connection. See our guide to sending 100GB+ files for time estimates.
What about sensitive client work? No server copy means client files never sit on third-party infrastructure. For agencies and freelancers, that's often the deciding factor.
Skip the queue: start a full-speed transfer now.