Download the official version of OBS Studio:

You can also visit the OBS Project Github Releases page.

Instructions

• Download the latest macOS version OBS Studio. This is a file ending in .dmg
• If the disk image does not mount by itself, open it from your Downloads folder
• Drag OBS to the Applications folder as shown

Alternative Installation Method

Homebrew

brew install --cask obs

Build from Source

For instructions on how to build from source, check the Build Instructions for Mac guide on the OBS Studio wiki.