OnSeattle.com is a local discovery and information website focused on Seattle, Washington. It brings together a directory of more than 72,000 local business listings, helping people find places and services across dining, nightlife, lodging, shopping, health, beauty and fitness, home services, automotive, community organizations, and more. Visitors can browse categories such as restaurants, coffee shops, bars, hotels, attractions, parks, doctors, contractors, and retailers.

The site also provides an events calendar featuring performances, comedy, live music, theater, and other activities at venues around the area. Its editorial content includes articles, columns, guides, news, and reviews covering Seattle and other travel destinations. OnSeattle.com offers businesses options to add or claim a listing, update details such as photos and hours, and explore advertising or sponsorship opportunities. Content creators can contribute to the site. A weekly email newsletter highlights Seattle events, new places, and recommendations for the weekend. Overall, OnSeattle.com serves as a practical guide for residents and visitors seeking local businesses, things to do, and regional information.