Pied Piper Drop  ·  dotdrop

AirDrop for everyone. Send files device-to-device — no cloud, no account, no sign-in. Cross-platform (Mac · Windows · Linux · iOS · Android). Works on a LAN with no internet at all.

What it is · Build & run · DOT-native roadmap · Credits

---

Pied Piper Drop is the file-transfer member of the Pied Piper family — the internet you own, not rent. Pied Piper chat carries your messages peer-to-peer; Pied Piper Drop carries your files the same way: straight from one device to another, encrypted in transit, with no server in the middle holding your data and no account to create.

What it is

• Device-to-device transfer — files go directly between devices over your local network (mDNS discovery + HTTPS). Nothing is uploaded to a cloud.
• No account, no sign-in, no cloud — open it, pick a file, pick a device, send. That's the whole flow.
• Truly cross-platform — Mac, Windows, Linux, iOS, Android. An AirDrop that isn't locked to one vendor.
• Offline-first — on a LAN it needs zero internet.

Build & run

Pied Piper Drop is built on the proven LocalSend engine (Flutter). Build from source:

git clone https://github.com/dot-protocol/dotdrop
cd dotdrop/app
flutter pub get
flutter run          # or: flutter build <macos|windows|linux|apk|ipa>

Prebuilt Pied Piper releases are on the way. Until then, build from source above.

The DOT-native roadmap

Drop starts as a clean LocalSend fork and grows into a DOT-native transfer tool — the same "you own it" thesis as the rest of Pied Piper. What's landing (tracked in FORK-NOTES.md):

• Ed25519 identity per device — your device's public key is its Pied Piper address (QR + piper:// handle). Not an account — a real cryptographic identity.
• Signed transfer receipts — the manifest is signed before send; the receiver keeps a signed receipt. Two-sided, tamper-evident proof a transfer happened.
• Relay fallback across NAT — a Pied Piper rendezvous relay (PAKE) so transfers work across networks and continents, not just the LAN.
• Signed transfer events — optional, for holders who want an on-chain receipt.

These are the plan, not shipped yet — the device-to-device file core above works today.

Credits

Pied Piper Drop is a fork of LocalSend by Tien Do Nam and contributors (Apache-2.0). Full attribution in NOTICE.md; the original license is preserved in LICENSE. Standing on their shoulders — the millions who already know "the AirDrop alternative" didn't put it down, and neither did we.

License

Apache License 2.0 (inherited from LocalSend, patent grant included) — see LICENSE.