If you have a hackable Switch (Erista model, unpatched) and are willing to risk a ban from online services, you can install NXThemes Installer. This tool lets you download and apply custom UI themes from communities like Theme Plaza.
Where to find custom UI download links:
How to install (for educational purposes only): nintendo switch ui download link
🚨 Legal & safety reminder: Custom UI downloads from unofficial sources can brick your console or get your Nintendo Account permanently banned. Proceed at your own risk. If you have a hackable Switch (Erista model,
You cannot download the Switch UI as a standalone file from Nintendo to install manually (like an ISO or EXE). The official UI (called the "Home Menu") is part of the System Firmware. How to install (for educational purposes only):
If you simply want the latest official UI features (like the “Sort by Software” option added in v18.0.0), follow this guide:
Current latest firmware (as of 2025): v19.0.0 – adds “Virtual Game Cards” UI and improved menu load times.