A high-performance, small-footprint platform that implements a subset of HTML5/CSS/JS to run applications, including the YouTube TV app.

Start using Cobalt

sd_card Efficient

Cobalt's small binary is optimized for memory, reducing the likelihood of out-of-memory crashes.

security Secure

Cobalt ensures strong security by requiring use of HTTPS and CSP.

devices_other Cross-platform

Cobalt's targeted, streamlined porting process supports a wide range of platforms and device types.