About Copy Paster

CopyPaster is a lightweight browser tool for moving temporary text, supported files, and short chat messages between devices. It does not require an account. Instead, the service derives a room from the public IP address visible to the server.

The tool is intended for quick handoffs such as sending a link from a phone to a laptop, sharing a troubleshooting note, or transferring a small document between nearby devices. Text rooms support up to 20,000 characters, while uploaded files are limited to supported formats and expire after one hour.

Public-IP rooms are convenient, not confidential. Other people routed through the same home, office, school, guest Wi-Fi, carrier, or VPN address may enter the same room. CopyPaster should never be used for passwords, private keys, payment details, medical data, or other sensitive material.