It is of interest to evaluate the antibacterial, anti-inflammatory, and antioxidant effects of copper nanoparticles synthesized using Piper longum and Piper betle. The copper nanoparticles were characterized using various techniques and found to have a diameter between 30 and 90 nm. The nanoparticles exhibited significant antibacterial activity against E. faecalis, S. aureus, C. albicans, and S. Mutans, comparable to gold standards. They also demonstrated anti-inflammatory effects similar to the gold standard values. Furthermore, the copper nanoparticles displayed antioxidant capabilities, with maximum inhibition of 85.16% at 50 g/ml and a minimum inhibition of 50.62% at 10 g/ml. Overall, the study suggests that Piper longum and Piper betle mediated copper nanoparticles possess promising antibacterial, anti-inflammatory, and antioxidant properties, indicating their potential use in various applications.