In this OBS guide, I’m showing you how to stream vertical AND horizontal to YouTube at the same time in 2026—without making it a complicated, “tech bro” mess. The whole goal here is simple: you keep your normal widescreen stream for YouTube Live, but you also push a clean vertical version for Shorts-style viewing, mobile audiences, and repurposing. I walk you through the exact tools you need, what to install, and the basic setup flow so you can get it working fast. I’m using OBS Studio as the base (because it’s still the move), and then I pair it with the Aitum Stream Suite plugin to handle the dual-output workflow. Once you’ve got that in place, you can build a horizontal scene like you normally would, then create the vertical layout without wrecking your main stream—think separate framing, separate crop, and a layout that actually makes sense on a phone. If you’ve been trying to grow on YouTube while still streaming like a normal human, this is one of the easiest upgrades you can make to your setup.