About Transfer.zip
Transfer.zip is an open-source file-sharing project led by Robin Karlberg and improved with help from contributors. It includes browser-based file tools, real-time encrypted transfers, and stored file transfers.
Maintainer
Robin Karlberg
Robin leads development of Transfer.zip. His work on the project covers local ZIP processing, encrypted browser file transfers, storage-backed transfers, and the infrastructure that connects them.
Open source
Built in public
The Transfer.zip source code and self-hosting documentation are public. Contributors can inspect how files are handled, report problems, suggest improvements, or run the service on their own infrastructure.
How Transfer.zip handles files
Browser file tools
Tools such as the ZIP creator and archive extractor process files locally in the browser. Those files are not uploaded to Transfer.zip.
Quick Transfers
Quick Transfers encrypt file data in the browser and stream it through a relay without storing the files on Transfer.zip servers.
Stored Transfers
Stored Transfers send files from the browser to configured storage and remove them after the transfer expires.