Iq-test-for-kids.com offers IQ tests for children at no charge. Although the tests are not official, no personal information is required to take the test and see the results. 123test.com also offers a free IQ test for kids. At this site, entering personal information to assist with demographic tracking is optional.
Iq-test-for-kids.com offers two different IQ tests for children. One test is for aged 4 years to 8 years, 11 months, and the other is for kids aged 9 to 16. As of May 2015, the site states that the IQ is calculated based on the answers of over 659,000 children and that the test is PhD certified.