Roku OS
| Roku OS home screen | |
| Developer | Roku, Inc. | 
|---|---|
| Written in | C, BrightScript, SceneGraph | 
| OS family | Linux on embedded systems | 
| Working state | Current | 
| Released to manufacturing | 2004 | 
| Latest release | 14.1 / January 7, 2025 | 
| Marketing target | Streaming television | 
| Available in | English, French, German, Portuguese, Spanish | 
| Update method | Over-the-air update | 
| Package manager | ropm | 
| Platforms | ARM Cortex-A53, ARM Cortex-A55, ARM Cortex-A73, ARM Cortex A35, ARM quad core 1 GHz, ARM dual core 1.2 GHz, MIPS 1 GHz | 
| Kernel type | Monolithic (Linux) | 
| Default user interface | Graphical (Multi-touch) | 
| License | Proprietary | 
| Official website | www | 
The Roku OS is an operating system software developed by Roku, Inc. It has powered consumer electronics products such as Roku-branded streaming players and TVs since 2004. The Roku OS is the most popular TV operating system in the U.S., reaching an estimated 90 million households as of 2025.
The Roku OS works as a streaming platform that hosts both "free" and paid streaming channels through its graphical user interface. It has been reported to be easy to use and powerful. The operating system initially powered Roku's streaming players in 2004, extended support for smart TVs in 2014, and since also to Roku-branded home entertainment devices such as smart speakers, as of 2023.