Festorum is an online guide to festivals, fairs, celebrations and local traditions across Italy. It helps people discover what is happening today, over the weekend, during the month or throughout the year, with listings searchable by location, region, province, distance and event category. Visitors can browse events in a grid or list and filter for free activities. Categories include food festivals, religious celebrations, music and folk events, historical reenactments, fairs and markets, carnival, cultural activities, sports and walking experiences.

The portal brings together events from towns and cities across all 20 Italian regions, covering 7,901 municipalities. Its listings feature a wide range of local gatherings, from patron-saint celebrations and processions to concerts, food fairs, historical walks and outdoor excursions. Festorum updates its event information daily and provides a calendar view to support planning. Users can access an account and submit events for inclusion, making the site a resource for both people looking for things to do and those sharing local events.