Same code, any distance
The room and the other side of the world are the same gesture: drop a file, share the code, compare six digits. LAN mode when there is no internet at all.
Comparison
These three nailed local sharing: open an app or a browser tab, see the device across the room, drop a file. Free, open source, no accounts. Blixt covers the same room — and everything beyond it: the same code flow works across the internet, with resume, relays for hard NATs, and link aggregation.
| LocalSend / PairDrop / Snapdrop | Blixt | |
|---|---|---|
| Price | Free and open source | Free plan; flat paid plans |
| Same-network sends | Yes — their home turf | Yes — LAN mode over direct, pinned QUIC |
| Fully offline, no server | LocalSend: yes. PairDrop and Snapdrop need their web server to load | Yes — LAN mode uses no signaling server at all |
| Across the internet | LocalSend and Snapdrop: no. PairDrop: only between devices paired in advance | Yes — the same code flow; direct QUIC or HTTPS, relays on :443 for hard NATs |
| Resume after a drop | No — a failed transfer starts over | Yes — missing chunks only, verified against a MAC-protected journal |
| Link aggregation | No | Multiconnect bonds Ethernet + Wi-Fi + a tethered phone (Basic plan and up) |
| Channel verification | TLS or WebRTC encryption; trust models vary by tool | TLS 1.3, fail-closed certificate pinning, and a 6-digit SAS compared out of band |
| Zero-install receiving | PairDrop and Snapdrop run in a browser tab | bCloud share links open in any browser, any device |
| Mobile today | LocalSend ships mobile apps; PairDrop works in mobile browsers | Android Preview 0.1.0: Sideloaded debug APK; Android 10+, arm64. iOS is planned. bCloud share links work in any mobile browser |
Credit where due
And they’re free and open source.All three publish their code; Blixt’s code is not public. If your transfers never leave the room and never break mid-way, these tools are a fine answer and we won’t pretend otherwise.
The other direction
The room and the other side of the world are the same gesture: drop a file, share the code, compare six digits. LAN mode when there is no internet at all.
ICE/STUN hole punching for direct paths; when a corporate firewall blocks everything, a relay on :443 that looks like ordinary web traffic.
A MAC-protected journal identifies missing verified blocks, BLAKE3 verifies every chunk, and Multiconnect can use selected links in parallel.
Priority support on the Max plan, bCloud share links with passwords and expiry, S3 integration, and a CLI for scripts.