Open Broadcaster Software is free software to broadcast online or screen capturing. It is the best alternative to similar commercial software. The program is also ideal for video recording from the screen. With Open Broadcaster Software you can configure the recording source: a screen, a single window or broadcast of the game.
The application can record sound from the microphone. Moreover, the application is characterized by the following features. It supports live RTMP streaming to Twitch, YouTube, DailyMotion, Hitbox, etc.
File output to MP4 or FLV, as well as GPU-based game capture for high performance game streaming.