Wirecast - Users in need of tools to edit their livestream broadcasts will find everything they need in Wirecast.
Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
Ecamm Live - Multi-channel live streaming solution
Celtx - Celtx is a scriptwriting software platform with applications in a wide range of mediums but that specializes in helping screenwriters.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Trelby - The free, multiplatform, feature-rich screenwriting program!