Send Large Files While Sleeping —
Auto Wake-Lock
Never fail a massive overnight transfer again. Our smart wake-lock keeps your device and Wi-Fi active until every byte arrives safely.
Prevents OS display and Wi-Fi sleep locks
Stream huge 4K archives with zero cloud caps
Direct WebRTC stream up to 120MB/s
100% private, files never touch servers
Drop Files for Instant P2P Transfer
Drag & drop any files or folders here, or click to browse. No file size limit.
Why Overnight File Transfers Normally Fail
When transferring huge 50GB video projects overnight, phones and laptops automatically enter low-power sleep mode after a few minutes of inactivity. When the screen goes black, the OS cuts Wi-Fi background sockets, terminating the transfer midway.
Textunnel integrates the HTML5 Screen Wake Lock API to prevent sleep standby until the entire file stream completes. Leave the tab open, go to sleep, and wake up to a finished download.
How to Transfer in 3 Steps
Select Files
Drop files into the tool to initiate the active wake lock.
Connect Receiver
Scan the QR code or enter the 6-digit code on the other machine.
Rest Easy
Your screen stays awake and completes the transfer overnight.
Ideal for Heavy Media Workflows
Built for filmmakers, 3D artists, and large backup migrations.
4K / 8K Video Footage
Move 100GB+ raw footage from camera laptops to editing workstations overnight with zero bandwidth throttling.
Full Device Backups
Migrate photo libraries and ISO disk images between old and new PCs over high-speed local Wi-Fi.
Off-Hours Studio Sync
Transfer 3D render caches and game build assets while your studio is closed without babysitting progress bars.
Frequently Asked Questions
How do I send large files while sleeping without transfer failure?
Textunnel activates a browser-level Screen Wake Lock API. As soon as a transfer begins, it keeps your device and Wi-Fi interface active overnight until 100% of the payload is delivered.
Is there any file size limit for overnight transfers?
No. Because files stream peer-to-peer over your local network using WebRTC, you can transfer 50GB, 100GB, or even multi-terabyte datasets without cloud storage caps.
Does it drain laptop or smartphone battery?
We recommend keeping your laptop or phone plugged into a power charger overnight during 50GB+ transfers to prevent device shutdown.
Is my data stored on any server while I sleep?
No. Payload data streams directly in ephemeral memory buffers between your devices with end-to-end encryption. Nothing is ever written to cloud servers.
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