Give two agents on two machines the same encrypted folder. P2P, no cloud, only read bytes move.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
Manual Client & Custom JSON ConfigExpand JSON ▾
Client Config & Setup
Remote HTTPChoose your client or environment
Target File:
💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
Documentation Overview
Work on shared files instantly.
No more upload or download waiting.
How to edit in DaVinci Resolve, Premiere Pro or Final Cut while traveling. Your footage stays on the studio NAS, you open it on demand from the app, no waiting for a download or an upload. Click for the two minute demo.
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, Android. iOS coming soon. Open source engine (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) |
|---|---|
 |  |
Mac and Windows side by side. Click to watch on YouTube (with sound)
Install
macOS
Linux (Debian/Ubuntu)
Windows
Or download from GitHub Releases.
Android
We host our own F-Droid repository. Open fdroid.keibisoft.com on your phone, scan the code, and check the fingerprint before you add it.
To add it by hand, use https://fdroid.keibisoft.com/fdroid/repo in F-Droid under Settings, Repositories. The fingerprint to check is on the same page.
Build from source
Quick start
Same network (LAN):
- Both peers launch KeibiDrop
- Devices discover each other automatically
- One click to connect
- Share files
Over the internet:
- Both peers launch KeibiDrop
- Copy your fingerprint and send it to your peer (Signal, Telegram, anything)
- Paste each other's fingerprints and connect
- 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
| Direct Transfer | Virtual Folder (FUSE) | |
|---|---|---|
| Speed | Up to ~660 MB/s | Up to ~276 MB/s |
| How it works | Add files, peer pulls them | Peer's files appear as a local folder |
| Setup | Nothing extra | Install macFUSE, fuse3, or WinFsp |
| Best for | Sending large files | Working on shared files, git repos |
How it works
- Peers exchange fingerprints (or discover each other on LAN)
- KeibiDrop finds the fastest path: LAN, direct IPv6, or encrypted relay
- Files transfer over an encrypted channel the relay cannot read
- 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.
Three interfaces
Desktop UI (Rust/Slint)
Interactive CLI (terminal REPL)
Agent CLI (for scripts and AI agents, all output is JSON)
Configuration
KeibiDrop reads ~/.config/keibidrop/config.toml. Environment variables override the config.
| Setting | Env var | Default |
|---|---|---|
| Relay server | KD_RELAY | https://keibidroprelay.keibisoft.com/ |
| Bridge relay | KD_BRIDGE | bridge.keibisoft.com:26600 |
| Save folder | KD_SAVE_PATH | ~/KeibiDrop/Received/ |
| FUSE mount | KD_MOUNT_PATH | ~/KeibiDrop/Mount/ |
| Inbound port | KD_INBOUND_PORT | 26431 |
| Disable FUSE | KD_NO_FUSE | false |
Security
Post-quantum hybrid key exchange prevents future quantum computers from decrypting recorded traffic. Forward secrecy via periodic re-keying limits exposure if a session key is ever compromised.
By default, identity persists across sessions (so saved contacts keep working), encrypted with a per-install master key stored in the OS keychain (macOS Keychain Services, Linux Secret Service, Windows Credential Manager). Headless setups fall back to ~/.config/keibidrop/.master.key (mode 0600). Optional passphrase protection via Argon2id for users who back up config to the cloud. Incognito mode switches to ephemeral keys: a fresh keypair each session, anonymous, unlinkable, nothing written to disk.
Full protocol description: Security.md
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, mobile apps, and brand assets: Proprietary - see DUAL-LICENSE.md
Desktop UI built with Slint
Built by KeibiSoft SRL.
By trade
Remote DFIR triage
Mount an evidence share read only across NAT and extract the artifact set you need, with no inbound port, native on Windows, and no kernel driver on the evidence machine. There is a write-up and a DFIR page.
Post-production handoff
Mount the camera originals. No proxy transcode before the handoff, and no relink after it.
Datasets on a rented GPU box
Mount the workstation that holds the data. No bucket, and no upload before the first batch.
An always-on box: NAS, mini PC, home server
A session needs both machines online, and a NAS, a mini PC or a home server is online all the time. The container in docker/ runs the serving side on that box from plain Docker with the stock kernel. Your laptop mounts the folder from anywhere and reads on demand, so only the bytes a program reads cross the wire. In that run the box, a container on a server in Timisoara, served 161 files to a laptop in Bucharest; the laptop paired once, listed the folder and hashed one photo. Setup is one compose file, in the guide. An Unraid template is in docker/unraid/.
Photographers and editors
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Frequently Asked Questions about KeibiDrop
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