Open Broadcaster Software

Open Broadcaster Software is free and open source software for video recording and live streaming. Supported features include:

  • Encoding using H264 (x264) and AAC.
  • Support for Intel Quick Sync Video (QSV) and NVENC.
  • Unlimited number of scenes and sources.
  • Live RTMP streaming to Twitch, YouTube, DailyMotion, Hitbox and more.
  • File output to MP4 or FLV.
  • GPU-based game capture for high performance game streaming.
  • DirectShow capture device support (webcams, capture cards, etc).
  • Windows 8 high speed monitor capture support.
  • Bilinear or lanczos3 resampling.
  • Syphon in and out

 

https://obsproject.com