KeibiDrop sends a file straight from one computer to the other, with no upload to a server first. If the connection drops, the part already received stays on disk. When the same peer reconnects, the transfer continues from the last block received and does not start over.
There is no file size limit and no account. It is free, the engine is open source, and it runs on macOS, Windows, Linux and Android.
Measured, with the conditions on the original page:
- 40 MB download cut at 8 MB | Finished after the reconnect, checksums matched | Two peers on one Mac, through the relay bridge, 3 Sep 2026
- Key rotation during playback | 9 rotations, 0 underruns, slowest fetch 171 ms | Playback paced at 40 Mbps, 2 s budget per fetch
Full version, with the limits and the method: Send files without interruptions, even when the connection drops
Source, MPL-2.0: github.com/KeibiSoft/KeibiDrop
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