Cross-Device File Sharing & Clipboard Sync — No Upload, No Signup

Textunnel is the fastest cross-device file sharing and clipboard sync tool. No login. No friction. Just connect and send instantly between any OS.

P2P Encrypted
No Size Limit
Cross Platform
Open Source

Drop Files for Instant P2P Transfer

Drag & drop any files or folders here, or click to browse. No file size limit.

End-to-End Encrypted· Zero Cloud Uploads· Unlimited Size
Direct Device-to-Device
0 Server Storage
100% WebRTC Encrypted
Open Source & Free
Architectural Guarantees

Engineered from Inception for Zero-Cloud Privacy

Pure client-side WebRTC protocols, zero centralized data retention, and mathematically verified end-to-end encryption.

0 Server Storage

Files and clipboard streams travel exclusively through ephemeral browser memory buffers. Zero bytes ever write to cloud disks or central databases.

Ephemeral In-Memory Only

DTLS 1.3 Encryption

All peer-to-peer data channels use Datagram Transport Layer Security with AES-GCM cipher suites. Encryption keys stay strictly on your local devices.

End-to-End Cryptography

Full Local Wi-Fi Speed

Transfers bypass slow cloud upload bottlenecks completely, streaming multi-gigabyte 4K videos at the full hardware throughput of your local router.

Unthrottled Throughput

Zero Software Install

Runs seamlessly in standard browsers across macOS, Windows, Linux, iOS, and Android. No account logins, zero app downloads, and 100% free.

Open-Source Protocol
3-Step Frictionless Workflow

How Textunnel Works

Direct device-to-device WebRTC connections. No app installs, no signups, and zero cloud intermediaries.

STEP 01Zero Setup
Safari / Chrome / Edge
https://textunnel.com
Live

1. Open in Any Browser

Visit textunnel.com on iPhone, Android, Mac, or Windows. Fully client-side with zero app downloads or accounts.

Instant Web AppAll Modern OS
STEP 021-Second Pair
LAN Radar Active
Local Wi-Fi
Nearby Phone Detected
#849 210

2. Connect in 1 Second

Smart LAN Radar discovers devices on your local Wi-Fi automatically. Or pair instantly by scanning a QR code.

QR or 6-Digit PINAuto-Remember
STEP 03Direct WebRTC
4K_Video_Project.mov92 MB/s
Transferred (3.2 GB)Direct P2P

3. Stream Wirelessly

Drop multi-gigabyte media or paste real-time clipboard text. Transferred directly with zero size limits or compression.

DTLS 1.3 Encrypted0 Server Storage

Everything you need to work seamlessly

Designed for developers, creators and power users.

Smart Code Formatting

Auto-detects languages and formats code blocks with beautiful syntax highlighting.

Rich Link Previews

Send URLs and instantly get rich social previews, making links actionable.

Instant Sync

Direct P2P WebRTC connections mean zero latency and unlimited transfer speeds.

Cross Platform

Works seamlessly across iOS, Android, Windows, Mac, and Linux. No apps needed.

Built for your workflow

No matter what you need to move, Textunnel gets it there instantly.

iPhone to Windows

Transfer photos and videos from your iOS device to your PC without iTunes or cables.

Read guide

Sync Clipboard

Copy text or code on your Mac and paste it instantly on your Android phone.

Read guide

Ditch Email Attachments

Stop emailing yourself links and files. Send them securely over your local network.

Read guide

Textunnel vs Alternatives

Why professionals choose Textunnel over other P2P sharing tools.

FeatureTextunnelPairDropSnapdrop
Clipboard Stream✅❌❌
Text Sharing✅✅✅
Rich Link Previews✅❌❌
Code & Markdown✅❌❌
Browser Only (No Apps)✅✅✅
Detailed Head-to-Head Comparisons:
vs AirDropvs LocalSendvs PairDrop

Ready to try?
Start sharing in 10 seconds.

Free forever. No signup required. Open source friendly.

Direct Extractable Answer

The Complete Guide to Instant Cross-Device P2P Transfer & Universal Clipboard

Textunnel (https://textunnel.com) is an open-source, browser-based peer-to-peer (P2P) file transfer and universal clipboard synchronization tool. It connects devices (iOS, Android, Windows, macOS, Linux) over local Wi-Fi via encrypted WebRTC DataChannels with zero cloud storage, unlimited file sizes, and end-to-end DTLS 1.3 encryption.

Zero Cloud Retention

Files and clipboard payloads stream directly through volatile device memory. Zero bytes are saved on remote databases or intermediate relays.

Smart LAN Radar

Automatically detects active nearby peers on the same local Wi-Fi network for instant 1-tap connection with zero manual code typing.

50GB+ Large File Engine

Utilizes chunk backpressure flow control and the Screen Wake Lock API to stream multi-gigabyte 4K media without browser tab crashes.

Universal Clipboard

Real-time clipboard synchronization and mobile camera snapshot streaming with one-click copy directly into desktop IDEs and office apps.

Why Choose Textunnel for File Sharing?

When it comes to cross-device transfer, traditional methods often fall short. Emailing yourself attachments or using messy cloud storage links can be slow and counterintuitive. As a modern airdrop alternative, Textunnel completely reimagines how you handle file sharing across different operating systems.

Whether you need to instantly pass a copied snippet from your Mac to your Windows PC via our clipboard sync feature, or you are looking for lightning-fast local network file transfer to send large 4K videos directly to your Android device, Textunnel offers a seamless, frictionless experience. Because there are absolutely no servers involved in the middle of your transfer, your speed is only limited by your local Wi-Fi router.

The primary advantage of a peer-to-peer file transfer tool is that it eliminates the dreaded middleman. You don't have to wait for your files to upload to a remote server before you can start downloading them on your other device. By utilizing modern web standards, you can securely send files wirelessly from any browser, directly to any browser.

Secure File Sharing with WebRTC

Security and privacy are at the absolute core of our p2p file sharing architecture. Unlike cloud-based platforms that store your data indefinitely, Textunnel leverages advanced WebRTC technology to create a direct, encrypted tunnel between your two devices.

What does this mean for your secure file sharing needs? It means that every byte of data, every line of code, and every high-resolution photo you send is protected by military-grade end-to-end encryption. The data flows directly from your smartphone to your laptop, meaning we as the platform providers have literally zero access to your files. Your privacy is mathematically guaranteed.

Furthermore, our focus on being the fastest and most private file transfer tool means we don't even ask for your email address. There are no accounts to create, no software clients to install, and no limits on your LAN transfers. Just open the website, enter a 6-digit room code or scan a QR code, and experience the future of cross-device transfer.

Frequently Asked Questions

Everything you need to know about Textunnel.

How does Textunnel work?
Textunnel establishes a secure peer-to-peer (P2P) WebRTC connection between your devices. Once connected, your text, links, and files are transferred directly between your devices without being stored on any central server.
Is Textunnel free?
Yes! The core features of Textunnel, including unlimited local network (LAN) file transfers and cross-device clipboard sharing, are completely free to use.
Do I need to install anything?
No installation or account registration is required. Textunnel works directly in your web browser. Just open the website on any device to start sharing instantly.
Can I transfer files?
Absolutely. You can transfer files, photos, videos, and documents of any size when connected to the same local network. The transfer happens instantly at your maximum Wi-Fi speed.
Is it encrypted?
Yes. All data transferred through Textunnel is protected by industry-standard WebRTC end-to-end encryption. Since files are transferred P2P, they never pass through or get stored on our servers.
Does it work on iPhone?
Yes, Textunnel works perfectly on iPhone through Safari or Chrome. You can easily share text, photos, and files between your iPhone and any other device like a Windows PC.
Does it work on Android?
Yes, it fully supports Android devices. Simply open Textunnel in Chrome or any modern browser on your Android phone or tablet to connect and share.
Can I use it on Windows?
Yes. Textunnel works seamlessly on Windows via Edge, Chrome, Firefox, or Brave. It's the perfect solution for copying text or sending files between your smartphone and your Windows PC.
Is cross-device file sharing faster than Bluetooth?
Yes, significantly faster. While Bluetooth is convenient for small text, cross-device file sharing via WebRTC utilizes your local Wi-Fi network's full bandwidth. This means you can transfer gigabytes of video from your iPhone to your Windows PC in seconds, whereas Bluetooth would take hours. It is the most efficient way to move large assets.
Can I use this for cross-device clipboard sync?
Absolutely. One of our most popular features is cross-device clipboard sync. You can copy a long URL, a secure password, or a snippet of code on your Mac, and instantly paste it onto your Android device. It acts as a universal clipboard that connects all your operating systems seamlessly without requiring any app installations.
Can Textunnel automatically discover nearby devices without typing codes?
Yes! Textunnel features Smart LAN Radar to automatically detect nearby devices on the same Wi-Fi network for 1-click pairing. In addition, personal devices you pair once are remembered automatically, auto-reconnecting on page load with zero manual steps.
Featured Tutorials & Guides

Guides & Cross-Platform Tutorials

Master fast file sharing, large video streaming, and clipboard automation across iOS, Android, Mac, and Windows.

View all guides
Video Transfer

Transfer Large Videos Android to iPhone

Send high-bitrate 4K videos directly between Android and iOS without WhatsApp compression or cloud limits.

Read guide
Technical Architecture

P2P File Sharing Explained

Understand how WebRTC SCTP data channels and DTLS encryption transfer files with zero server storage.

Read guide
Performance Tip

Keep Screen Awake During Large Transfers

Prevent mobile Safari and desktop browsers from sleeping during multi-gigabyte file transfers.

Read guide
Productivity

Auto-Save Transferred Files Silently

Configure browser file system permissions so received files download directly to your folder without clicking prompts.

Read guide
Device Pairing

Persistent Pairing Like AirDrop

How to automatically pair and remember your PC and phone for 1-click seamless reconnects on your local Wi-Fi.

Read guide
Workflow

Copy-Paste & Drag-Drop Between Devices

Drag and drop files across browser windows or paste clipboard text seamlessly from phone to laptop.

Read guide
Compare Alternatives:
AirDrop AlternativeLocalSend AlternativeWarpShare AlternativeNo-Login Tools