On San Antonio is a local guide and business directory designed to help residents and visitors discover what San Antonio, Texas, has to offer. Its website brings together more than 80,000 local business listings, alongside events, articles, guides, columns, reviews, news, and weather information. Visitors can explore restaurants, cafés, bars, breweries, hotels, attractions, parks, museums, shops, health and beauty providers, home services, automotive businesses, and community organizations.

Event listings highlight upcoming concerts, comedy shows, sports, and other activities, while editorial content offers local recommendations and broader travel features. The site also helps businesses reach local audiences: owners can add or claim a free listing, provide details such as photos and hours, manage or upgrade their listing, and explore advertising and sponsorship opportunities. Content creators can contribute articles and other material.

With category browsing, search tools, and a weekly email featuring events, new places, and ideas for the weekend, On San Antonio serves as a practical resource for finding local businesses, planning outings, and keeping up with the city