Fast, secure, encrypted file transfer tool with automatic peer discovery.

• 🔒 AES-256-GCM encryption - All transfers are encrypted
• 📁 Folder support - Send entire directories with -r flag
• 🚀 Streaming transfer - Optimized for speed, especially with multiple small files
• 🔍 Auto-discovery - Finds peers automatically via mDNS
• ♻️ Smart duplicate detection - Skips identical files (single file transfers only)
• 📊 Real-time progress - Shows transfer speed and progress

Flying now has a graphical user interface (GUI) version for both desktop and mobile users!

Download the GUI app for your platform from the releases page:

• Windows: .msi or .exe installer
• macOS: .dmg or .app
• Linux: .AppImage, .deb, or .rpm
• Android: .apk installer

cargo binstall flying --git https://github.com/wpcRaskolnikov/flying

Download the latest CLI binary for your platform from releases page.

cargo build --release

Binary: target/release/flying

Either side must use -l to listen first, the other side will connect

# Sender listens (generates password)
# Computer A:
flying send -l myfile.pdf
# Computer B:
flying receive the-generated-password

flying send [OPTIONS] <file> [password]

Options:

• -l, --listen - Listen for connections (generates password)
• -c, --connect <IP> - Connect to specific IP
• -r, --recursive - Send folders
• -P, --persistent - Keep listening after transfer completes (requires -l)

Examples:

# Listen mode
flying send -l document.pdf

# Send folder
flying send -lr my-project

# Persistent mode (multiple transfers)
flying send -lP video.mp4

flying receive [OPTIONS] [password]

Options:

• -l, --listen - Listen for connections
• -c, --connect <IP> - Connect to specific IP
• -o, --output <DIR> - Output directory (default: current directory)

Examples:

# Auto-discover sender
flying receive the-password

# Listen mode
flying receive -l

# Custom output directory
flying receive -o ~/Downloads the-password

Contributions welcome! Submit issues or pull requests.