FestivalIndex is a local-first discovery platform for festivals and cultural events across the United Kingdom. Its regularly updated listings help people find what is happening nearby, explore events by date or location, and plan visits through calendar and map views. Visitors can browse all UK regions, including England, Wales, Northern Ireland and Scotland, as well as cities and local areas such as London and Westminster.

The platform covers a broad range of cultural and community experiences, including live music, concerts, theatre, film festivals, exhibitions, heritage walks, food and drink events, markets, sporting occasions and family-friendly activities. Listings provide practical details such as event dates, locations, descriptions and categories, with sections highlighting current, upcoming, weekend and recently published events. Users can also explore curated collections, save events, follow listings and search by topic or place. FestivalIndex offers country editions for discovering events beyond the UK and provides information about its project, listing process, corrections, partnerships and media resources.