Practice tests for driver's permits and driver's licences can be found on driving practice websites such as Driving-Tests.org, Driversprep.com and DMV.org. The website for each state's Department of Motor Vehicles also contains practice tests and other study materials based on current tests and requirements.
Driving-Tests.org features a full suite of interactive learning materials designed to help prospective drivers understand the basics of road safety and vehicle operation, including numerous practice tests for obtaining a learner's permit. The site offers a fully interactive testing system that provides immediate feedback for users and allows them to see relevant information for any questions answered incorrectly. As of February 2015, the site also has a smartphone app that contains several practice tests and learning materials, available through the Apple App Store for iOS devices.
Each state's Department of Motor Vehicles offers free testing materials online as well, including practice tests and digital versions of current driver's training manuals. Practice tests are based on actual driving tests, allowing users to see the likelihood of passing the real test. Results are reported only once the test has been completed, though users can view the questions that were answered incorrectly. Tests are also available in multiple languages.