Mechanical UI sound effects, royalty-free and cleared for commercial work. 4 libraries carry this tag, most of them filed under Interfaces and Mechanical.
Recordists here also tag Notification, Click and hardware, which is worth a look if nothing below fits.
This comprehensive collection features 10,290 UI sound effects across four distinct libraries, including mechanical, musical, sci-fi, and horror themes, delivered in high-quality WAV and MP3 formats.
This comprehensive collection features over 1,000 robotic UI sound effects and 1,000 voice recordings, organized across fifteen categories, including synthesized alerts, glitches, and computer interface responses.
Featuring 195 distinctive sound effects with a lo-fi aesthetic, this collection offers unique UI/HUD elements suitable for indie games, menus, and interactive applications.