ParkWhiz is a parking reservation service that helps users find and book parking spots in advance. It operates through a website and mobile app, allowing users to search for available parking based on their location, date, and time. This service is particularly useful in busy urban areas where parking can be challenging to find. By using ParkWhiz, drivers can compare prices and choose from various parking options, including garages and lots. The platform also provides details such as distance to the destination and user reviews, making it easier for users to make informed decisions about their parking needs.