The One You website aims to help adults reduce their risk of serious conditions such as heart disease and stroke.
It features a 10 minute health quiz at How Are You? to help identify the areas where people could make changes, and provides personalised feedback based on the answers given.
The website, developed by Public Health England, also has information on a range of topics from food and physical activity to stress and sleep, with free apps available to download which offer support and advice at your fingertips.
Councillor Hazel Malcolm, the City of Wolverhampton Council's Cabinet Member for Public Health and Wellbeing, said: "The start of a new year can be a time when we think about our health and maybe doing things a bit differently to keep ourselves well.
"But it can be confusing and sometimes overwhelming to decide on what to do. You may be asking yourself what you could change - whether that is to stop smoking, eat more healthily, be more active - and might be unsure as to what would be best for you.
"The One You website is a great place to get the information you need to guide you to the best decision for you."
As well as the One You website, people can also get local help and advice on health matters via the Wolverhampton Information Network - Check Your Health.
People aged between 40 and 74 who don't have a diagnosed condition such as heart disease or diabetes are entitled to a free NHS Health Check from their GP. Anyone who has not yet received an invitation for a Health Check, or who hasn't had a check for more than 5 years, should contact their surgery for an appointment.