Nintendo Switch system software
| 
 | |
| Developer | Nintendo HAL Laboratory | 
|---|---|
| Written in | C, C++ and HTML for eShop and online services settings | 
| OS family | Proprietary OS, derivative of the Nintendo 3DS system software (containing components which are based on FreeBSD and Android) | 
| Working state | Current | 
| Source model | Closed source | 
| Initial release | 1.0.0 / March 3, 2017 | 
| Latest release | 20.1.5 / June 18, 2025 | 
| Available in | 
 | 
| Update method | Direct download | 
| Platforms | |
| Preceded by | Nintendo 3DS system software Wii U system software | 
| Official website | support.nintendo.com | 
The Nintendo Switch system software (also known by its codename Horizon) is an updatable firmware and operating system used by the Nintendo Switch and Nintendo Switch 2 hybrid video game consoles. It is based on a proprietary microkernel. The user interface (UI) includes the game library organized in a horizontal row, with numerous additional options and shortcuts underneath.