| Aspect | Google Drive Link | Resilio Sync Key | | :--- | :--- | :--- | | Requires account | Yes (recipient must log in) | No | | File size limit | Yes (5TB for Drive, but slow) | Unlimited | | Central server dependency | Yes | No (P2P) | | Revocable after sharing | Yes | No (key is permanent—use expiring keys to mitigate) | | Works behind corporate firewalls | Sometimes (blocked) | Yes (with relay fallback) |

Traditional file synchronization (e.g., Dropbox, Google Drive, OneDrive) relies on a trusted intermediary server to store, index, and distribute data. This centralization introduces potential privacy risks (server-side data access), performance bottlenecks, and storage costs.

Resilio Sync replaces user accounts with . Every folder you sync generates a unique, 33-character secret key. This key serves three functions simultaneously:

: For extra security, you can enable "Request Approval." Even if someone gets your key, you’ll get a notification on your main device asking if you want to let them in. The "Headless" Server : You can install Resilio on a Linux server