ButterShare is a browser-based peer-to-peer file transfer tool built to make sharing large files and folders simple, fast, and private. Instead of uploading your files to a traditional cloud storage service first, ButterShare uses WebRTC to establish a direct connection between the sender and receiver whenever possible. This means files can move directly from one device to another without being permanently stored on ButterShare’s servers.
There is no signup, no account creation, and no app installation required. You can open ButterShare in your browser, choose the files or folders you want to send, generate a secure sharing link or QR code, and share it with the recipient. Once they open the link, the devices can connect and begin the transfer.
ButterShare works across Windows, macOS, Linux, Android, and iOS through modern web browsers, making it useful for transferring files between different devices and operating systems. You can send files from a Windows PC to a Mac, from an Android phone to an iPhone, from your laptop to your phone, or directly to someone else without installing additional software.
The platform is designed for a wide range of users. Video editors can send large video projects, photographers can share high-resolution photos and RAW files, designers can transfer project assets, freelancers can deliver work to clients, developers can move builds, datasets, logs, binaries, and project archives, and everyday users can quickly transfer personal files between their own devices.
ButterShare is especially useful when traditional file-sharing methods become inconvenient. Email attachments often have strict size limits, messaging apps may compress files, and cloud storage platforms usually require files to be uploaded before they can be downloaded by someone else. ButterShare removes much of that friction by focusing on direct browser-to-browser file transfers.
Key features include peer-to-peer file sharing, large file and folder transfers, shareable links, QR code sharing, encrypted WebRTC connections, cross-platform compatibility, no mandatory signup, and no permanent cloud storage for direct transfers.
Whether you are sharing a large video with a friend, sending project files to a client, moving data between your own devices, or transferring work files to a teammate, ButterShare provides a straightforward way to send files directly from the browser.
The goal of ButterShare is simple: make large file sharing easier without forcing users to create accounts, install apps, or rely on traditional cloud storage for every transfer.
