Tools
CopyPaster provides three focused tools inside each public-IP room. They are designed for temporary transfers between devices that share the same public internet route.
Shared text
Paste notes, URLs, code snippets, or other plain text up to 20,000 characters. Changes synchronize with other browsers in the same room.
Temporary files
Upload PNG, JPG, WEBP, PDF, TXT, or DOCX files up to 10 MB. Files can be downloaded by room participants and expire automatically after one hour.
Room chat
Exchange short messages during a transfer or troubleshooting session. Use the clear control when the conversation is finished.
Private notes
Send an end-to-end encrypted note through a private link. The text is encrypted in your browser, never reaches our servers, and is destroyed after it is read or when it expires. This is a separate, link-based tool — it does not use the public-IP room.
Create a private note