Textunnel - Fastest cross-device P2P file sharing and clipboard sync tool. No login, no friction, connect and send instantly between any OS.

Core Features

Textunnel has no account requirements, no installation steps, and works fully from any modern web browser on Windows, macOS, Linux, iOS, and Android. All transfers use WebRTC DataChannels protected by DTLS 1.3 encryption. No data is stored on intermediate servers at any point, and all payloads stream directly between devices to volatile memory with zero persistent server logs.

50GB+ Large File Transfer Engine

The tool uses chunk backpressure flow control and the Screen Wake Lock API to stream multi-gigabyte files including 4K ProRes media without browser tab crashes. The site reports a 28GB ProRes 4K draft transferred from a MacBook to Windows workstation in under 4 minutes over Wi-Fi 6.

Smart LAN Radar

The automatic local network detection feature finds all active nearby devices on the same Wi-Fi, allowing 1-tap connection without manually typing pairing codes. Devices a user pairs once are saved, and auto-reconnect on subsequent page loads.

Universal Clipboard Sync

Cross-device real-time clipboard synchronization works for plain text, code snippets, markdown, rich links, and camera snapshots taken from a mobile device. Snapshots taken on a phone can be pasted directly into desktop apps including IDEs and design tools with standard Ctrl+V shortcuts.

Additional Supported Functions

• Rich link previews for shared URLs

• Code and markdown formatting preservation during transfer

• Zero size limits for any transfer over local network

3 Step Workflow

1. Open Textunnel on both devices you wish to connect

2. Pair the devices either via QR code scan, 6-digit code entry, or 1-tap LAN Radar detection

3. Send files, text, clipboard content, or media. All data arrives instantly on the receiving end.

Comparison to Alternatives

Audience Use Cases

Textunnel is built for developers, creative teams, QA leads, IT staff, researchers, and power users:

• Backend and DevOps engineers can transfer API keys, SSH tokens, and Kubernetes configs without leaving logs in cloud chat or email platforms

• Video editors can move large 4K media files between workstations at full local network speed

• QA teams can send test assets across multiple mobile devices for responsive design validation

• Product designers can transfer whiteboard camera snapshots directly to desktop design tools

• IT directors can onboard remote contractors without requiring new account provisioning

• Security analysts can verify the full encryption implementation via the public open source GitHub repository

• Academic researchers can move large dataset archives between lab workstations and personal mobile devices without physical USB drives

Pricing and Availability

Textunnel is 100% free forever. All core features including unlimited LAN transfers and cross-device clipboard sync are available with no payment tiers, no hidden upgrades, and no mandatory signups. The full codebase is open source for public audit.