KeibiDrop

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Work on shared files instantly.
No more upload or download waiting.

_{Click to watch on YouTube (with sound)}

Another computer's files show up as a folder on yours. Open and edit them in your own apps, with nothing to download first.

• Open a 40 GB file and start working instantly. Your edits sync back.
• End-to-end encrypted (post-quantum). No cloud, and the relay never reads your files.
• Same network: one click. Over the internet: swap a code once, then save the contact.
• Their files become a real folder on your machine. Open, edit, git clone, anything.
• macOS, Linux, Windows. iOS and Android coming soon. Open source (MPL-2.0).

Direct Transfer	Virtual Folder (FUSE)
Drag files in. Your peer saves what they need.	Peer files appear as a folder. Open in any app.

Finder	Terminal (git)

Install

macOS

brew tap keibisoft/keibidrop
brew trust keibisoft/keibidrop
brew install keibidrop

Linux (Debian/Ubuntu)

wget -O keibidrop.deb $(curl -s https://api.github.com/repos/KeibiSoft/KeibiDrop/releases/latest \
  | grep -o 'https://[^"]*_amd64\.deb')
sudo apt install ./keibidrop.deb

Windows

choco install keibidrop

Or download from GitHub Releases.

Build from source

git clone https://github.com/KeibiSoft/KeibiDrop.git
cd KeibiDrop
make build-kd       # CLI daemon
make build-cli      # Interactive CLI
make build-rust     # Desktop UI (needs Rust + Slint)

Quick start

Same network (LAN):

1. Both peers launch KeibiDrop
2. Devices discover each other automatically
3. One click to connect
4. Share files

Over the internet:

1. Both peers launch KeibiDrop
2. Copy your fingerprint and send it to your peer (Signal, Telegram, anything)
3. Paste each other's fingerprints and connect
4. Share files

Save a peer as a contact to skip the fingerprint exchange next time. On the same network, saved contacts connect with one click using pseudonyms.

It works through firewalls automatically. If direct connection fails, KeibiDrop falls back to an encrypted relay. No port forwarding, no router configuration.

Two modes

How it works

1. Peers exchange fingerprints (or discover each other on LAN)
2. KeibiDrop finds the fastest path: LAN, direct IPv6, or encrypted relay
3. Files transfer over an encrypted channel the relay cannot read
4. Keys rotate automatically for forward secrecy

The encryption is post-quantum (ML-KEM-1024 + X25519) with AES-256-GCM or ChaCha20-Poly1305. Full protocol details in Security.md.

./keibidrop

./keibidrop-cli

./kd start                           # Start daemon
./kd show fingerprint                # Get your fingerprint
./kd register <peer-fingerprint>     # Register peer
./kd create                          # Create room (or: kd join)
./kd add /path/to/file.zip           # Share a file
./kd list                            # List shared files
./kd pull file.zip ~/Downloads/      # Download a file

Troubleshooting

See TROUBLESHOOTING.md.

Contributing

See CONTRIBUTING.md.

License

Go engine, CLI, and mobile bindings: Mozilla Public License 2.0 (per-file copyleft)

Rust UI and brand assets: Proprietary - see DUAL-LICENSE.md

Desktop UI built with Slint

Built by KeibiSoft SRL.

Links

• Website
• Technical deep dive
• Blog posts (22 posts on FUSE, crypto, performance)
• FAQ
• Comparison with alternatives