OBS Studio (also known as Open Broadcaster Software, or OBS) is a screen-casting and live-streaming software available across multiple platforms including macOS, Windows and Linux. Boasting features typically only found in commercial screen recording apps, OBS also provides one of the simplest workflows with an intuitive and easy-to-learn interface that makes recording and streaming a breeze. It's also totally free and open-source.

With its long standing history of continued updates and considering its ease of use and free cost, it's no wonder OBS is one of the most popular and highest recommended apps for screen-casting and live streaming.

NOTABLE FEATURES:

• Cross-platform (available for Mac, Windows and Linux).
• Encoding using H264 (x264) and AAC.
• Support for Intel Quick Sync Video (QSV), AMF and NVENC.
• Unlimited number of scenes and sources.
• Live RTMP streaming to Twitch, YouTube, Mixer, DailyMotion, Smashcast and more.
• File output to MP4, MKV 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.
• Light and dark themes to support various working conditions and preferences.