From the site: "The database for the Louvre’s collections consists of entries for more than 480,000 works of art that are part of the national collections and registered in the inventories of the museum’s eight curatorial departments (Near Eastern Antiquities; Egyptian Antiquities; Greek, Etruscan and Roman Antiquities; Islamic Art; Paintings; Medieval, Renaissance and Modern Sculpture; Prints and Drawings; Medieval, Renaissance and Modern Decorative Arts), those of the History of the Louvre department, or the inventories of the Musée National Eugène-Delacroix, administratively attached to the Louvre since 2004.

The Collections database also includes so-called ‘MNR’ works (Musées Nationaux Récupération, or National Museums Recovery), recovered after WWII, retrieved by the Office des Biens et Intérêts Privés and pending return to the legitimate owners. A list of all MNR works conserved at the Musée du Louvre is available in a dedicated album and may also be consulted in the French Ministry of Culture's Rose Valland database.

Lastly, the Louvre Collections database includes information on works on long-term loan from other French or foreign institutions such as the Bibliothèque Nationale de France, the Musée des Arts Décoratifs, the Petit Palais, the Fonds National d'Art Contemporain, the British Museum and the archaeological museum of Heraklion."