Paolini was born in Castelnuovo di Garfagnana and grew up near Carrara and Forte dei Marmi.
Her best Grand Slam performance was at the 2024 French Open, reaching the finals in both singles and doubles.
Standing at 1.63 m (5 ft 4 in), Paolini has expressed a desire to be taller to improve her serve.
Paolini has been sponsored by Asics for clothing and footwear since 2015.
Paolini made her WTA debut in 2015 at the Italian Open in women’s doubles, thanks to a wildcard entry.