Google showed off a new Google Maps for Web at its I/O conference in May and allowed users with an invitation to try out the preview. Now the company has publicly opened the Google Maps Preview to all.

Starting on Tuesday, Google said email invitations were no longer required to get instant access to the Google Maps Preview. In other words, anyone can now sign up to try it out. Just go to Google's Explore Maps page, click the Try Now button, and then opt in to start exploring.

Read: New Google Maps: We explore the features of the preview

The changes to Google Maps go beyond a "refresh" or "update". The service has been completely overhauled to make it easier for developers to work with and users to navigate. The most obvious changes to the service include visual elements, such as the Google Now-inspired cards, deeper integration of Google+ and more.

Although Google has opened the Google Maps Preview to all, the company has still to provide a firm release date for the final product.