Free Summer Exhibitions in 2026 Across Paris and Île-de-France: This Season’s Must-See Events

A curated guide lists free summer exhibitions across Paris and Île-de-France for 2026, including shows at Fluctuart, Perrotin Gallery, Petit Palais, Bourse de Commerce, Rachel Hardouin Gallery, and Domaine de Chamarande. Highlights include "Everybody's Searching for Their Cat" at Fluctuart (May 7–August 23), JR's "Les Esquisses de la Caverne" at Perrotin (June 5–July 25), the return of "We are (still) here" street-art exhibition at Petit Palais (June 20–September 20), and free late hours at Bourse de Commerce on the first Saturday of each month.