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

Open a 40 GB file and start working right away.
Your edits, available instantly.

macOS
Linux
Windows
Android
brew tap keibisoft/keibidrop
brew trust keibisoft/keibidrop
brew install keibidrop

Or download from GitHub Releases. FUSE mode needs macFUSE.

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

Or grab the binary from GitHub Releases. apt install pulls in FUSE for you.

choco install keibidrop

Or download from GitHub Releases. FUSE mode needs WinFsp.

Chocolatey lags the latest release while a new version waits for moderation. For the current build, use the direct download.

https://fdroid.keibisoft.com/fdroid/repo/

Add this repository in the F-Droid app, then install KeibiDrop. Published and signed by us. Details.

▶  Watch the demo (with sound)

KeibiDrop connection screen where you exchange codes

Open a 600 MB video from a peer's folder. It plays before the transfer finishes.

Two computers, one shared folder. Changes appear on both sides as they happen.

What it does

KEIBIDROP solves a specific problem: getting files from one device to another without uploading them to someone else's server.

Unlimited transfers

Any file size, any number of files, no bandwidth quota. Send a 5 KB config or a 500 GB database dump. Incomplete transfers resume automatically when the same peer reconnects.

Open now, edit live

A 4 GB video plays right away instead of downloading first. Edit a file and it saves back to your peer when you hit save.

Post-quantum encryption

ML-KEM-1024 + X25519 hybrid key exchange. AES-256-GCM or ChaCha20-Poly1305 for data. The relay, if used, forwards bytes it cannot decrypt.

Direct connection

Files travel directly between devices. There is no upload-then-download step. On a local network, it saturates gigabit ethernet.

Internet and LAN

On the same WiFi, devices discover each other automatically via Bonjour. On different networks, they connect through an encrypted relay.

Every platform

macOS, Windows, Linux, Android, iOS. Desktop GUI for regular use, CLI for scripting and servers, agent mode for automation. Shared files persist across app restarts.

Built for three trades

The same mount, in the words of the people using it.

Remote triage

Mount an evidence share read only, extract the artifact set you need, and leave the rest where it is.

Post-production handoff

Mount the camera originals. Skip the proxy transcode and the relink.

Datasets on a GPU box

Mount the workstation that holds the data. No bucket, no upload before the first batch.

Two modes

Pick files and send them directly, or mount a shared folder that both peers can read and write to.

Direct Transfer

Drag files in. Your peer saves what they need.

KeibiDrop direct transfer mode showing shared files between peers

Virtual Folder (FUSE)

Peer files appear as a folder. Open in any app.

KeibiDrop virtual filesystem mode with shared folder mounted

It behaves like a real folder

The shared mount is a standard filesystem. Your file manager, terminal tools, git, rsync, IDEs all work on it.

KeibiDrop FUSE flow: connect, mount, use any app, auto-synced
KeibiDrop shared folder visible in macOS Finder

Peer's files visible in Finder. Open, copy, or stream them.

Git clone, log, and status working on the KeibiDrop FUSE mount

git clone, git log, git status all work over the shared mount.

Browse your peer's folders

In direct transfer mode, directories show up as navigable folders. You can drill into them and save individual files.

Browsing a git repository received from a peer in KeibiDrop

Browsing a git repository received from a peer. Folder structure, source files, and docs all preserved.

Security details

The engine is open source and the cryptography is auditable.

Post-quantum key exchange

Key exchange uses ML-KEM-1024 + X25519 (hybrid, so it is secure against both classical and quantum attacks). Data encryption uses AES-256-GCM or ChaCha20-Poly1305, negotiated per session. When a relay is involved, it forwards encrypted bytes that it cannot decrypt. The full engine is open source under MPL-2.0.

How it works

Direct when possible. Encrypted relay as fallback.

KeibiDrop architecture: Device A connects directly to Device B with post-quantum encryption, relay as fallback

Comparison

KeibiDrop is the only open-source tool that combines internet connectivity, cross-platform support, and a virtual shared folder.

KeibiDrop croc LocalSend Syncthing
Works over the internet Yes Yes LAN only Yes
Virtual folder (FUSE) Yes No No No
Post-quantum encryption ML-KEM-1024 PAKE only TLS TLS
Encrypted transfer speed ~610 MB/s ~150 MB/s ~700 MB/s ~200 MB/s
No account needed Yes Yes Yes Yes
Agent / automation CLI JSON API No No REST API
Git clone on shared files Yes No No No
Cross-platform All platforms All platforms All platforms All platforms
Open source MPL-2.0 MIT MIT MPL-2.0

Transfer speeds are measured on one machine over loopback, so they show what each protocol costs rather than what a network link delivers. Over a wide area link the figures are lower for every tool and depend on the round trip time.

Side by side with the measurement and the limits: Blip, LocalSend, croc, Magic Wormhole, Syncthing, rclone, WeTransfer, sshfs. All eight on the comparisons page.

Runs on everything

Same protocol and encryption on every platform.

macOS Windows Linux Android iOS CLI

Desktop app with GUI. CLI for scripting and servers. Agent mode for automation pipelines.

Full install guide Documentation Source code

Open source · MPL-2.0 · No telemetry · No accounts