Ever tried to send a video from your phone to your laptop? The usual options are pretty terrible. You can upload it to WeChat or email, but then it gets compressed, sits on someone else's server, and takes forever if the file is large. Cloud storage works, but you need accounts, logins, and patience. We wanted something simpler: open a web page, see your devices, send a file directly. No installs, no signups, no server touching your data. That's exactly what we built with Monkeymore Drop , and the entire thing runs inside your browser. In this post, I'll walk you through how we pulled it off — the WebRTC tricks, the file chunking strategy, and why every file gets its own dedicated data channel. Why Keep Everything in the Browser? Before diving into the code, let's talk about why we insisted on a pure frontend implementation. Your files never leave your network. When you use a traditional file sharing service, your data gets uploaded to a server somewhere, then downloaded again by the recipient.…