Wireless transfer, simplified.

The fastest way to send files and folders between computers on the same WiFi network. No cloud, no cables, no limits.

Windows Windows 10 / 11 (64-bit)

Windows Installer

Recommended for Windows users. Guided setup wizard with desktop shortcuts and clean uninstallation.

Download for Windows (.exe)

Size: ~18 MB Release Notes ↗

macOS macOS 12+ (Universal)

macOS Disk Image

Native Apple disk image package. Drag and drop into Applications to get started instantly.

Download for macOS (.dmg)

Size: ~24 MB Release Notes ↗

Windows Portable No Install

Portable Zip

No installation required. Just extract and run anywhere. Perfect for USB flash drives.

Download Portable (.zip)

Size: ~25 MB Release Notes ↗

Looking for older builds or source code? View the latest release on GitHub →

Why use Witra?

📡

Auto-Discovery

Devices on the same network find each other automatically. No IP addresses or configuration needed.

⚡

WiFi Speed

Transfers happen directly over your local network. It's often 10x faster than cloud uploads.

🔒

End-to-End Encrypted

All transfers use TLS 1.2+ encryption. Your files are protected from eavesdropping on the network.

📁

Folder Support

Send entire directories with their structure intact. Just drag, drop, and send.

🚀

No Size Limits

Whether it's a 1KB text file or a 100GB 4K video, Witra handles it with ease.

⚙️

Native Power

Built with C++ and Qt for maximum efficiency. Lightweight, fast, and easy on your system resources.

Security Built In

Every transfer is protected from end to end

🔐 TLS 1.2+

Encrypted Connections

All peer-to-peer communication uses TLS 1.2+ with per-session certificates. File data, names, and metadata are never sent in cleartext.

🔢 Pairing Code

Verified Pairing

Each connection generates a unique 6-digit verification code. Both users confirm the code matches before any transfer begins, preventing man-in-the-middle attacks.

🔏 SHA-256

Integrity Verification

Every file includes a SHA-256 hash computed before sending. The receiver verifies the hash on completion. Corrupted or tampered files are rejected automatically.

🛡️ Path Sandbox

File System Safety

Received file paths are sanitized to prevent directory traversal attacks. Files are written to a temporary .part file and atomically renamed, so crashes never leave partial files.

📡 Anti-Spoofing

Discovery Protection

Peer discovery uses rotating tokens and IP verification. Rogue devices cannot impersonate legitimate peers or forcibly remove them from your device list.

⚖️ Resource Limits

DoS Resistant

Message sizes are capped at 1MB, connections limited to 10 per instance, and you can set a maximum accepted file size. Prevents memory exhaustion and disk flooding attacks.