ButterShare

ButterShare is a browser-based file transfer tool that moves files directly between devices in realtime using peer-to-peer connections. Open the page on both machines, share the room link, and the transfer starts immediately. There is no account to create, no app to install and no intermediate server holding your files. It works across operating systems and device types, including desktop, laptop and mobile, so you can move a document from a laptop to a phone or send a design file to a colleague without email attachments or cloud storage links. ButterShare is designed for people who need to hand over a file once, quickly, instead of managing a shared drive. Uploads and downloads happen at the same time between the two browsers, so a transfer completes as fast as the network allows. The project is free to use in the browser with no signup, no trial period and no credit card. It suits freelancers, developers, designers, support teams and anyone who regularly passes files between machines and wants a direct private route rather than a storage account. The interface stays out of the way: choose a file, share the link, and the other side receives it. Because the connection is direct between peers, files do not sit on third-party servers after the handover, which keeps the workflow simple for everyday transfers of documents, photos, archives and media.