Indonesian pop artist Salma Salsabil co-wrote "Uji Nyali" with Sheryl Sheinafia, with production by S/EEK. The track features Adrian Rahmat Purwanto on keys and synth, while Jessilardus Mates and Marco Steffiano handled drums and programming. Ade Avery contributed guitars to the recording. Vocals for "Uji Nyali" were recorded at Bro’s Studio, engineered by Aditya Bagus, and directed and produced by Bowo Soulmate, with editing by Heri Alesis. Stevano mixed the song at Sembunyi Studio, and Dimas Pradipta mastered it at Sum It! Studio.