100% free.
Includes results and your IQ certificate.
No registration required.
No personal data needed.
Results based on more than 100,000 completed IQ tests.
Complete 47 questions covering different cognitive abilities in up to 30 minutes.
As soon as you finish the test, you will receive your IQ score and a detailed analysis.
Create and download your personalized IQ certificate free of charge.
An online IQ test cannot replace a professional psychological assessment. However, it can provide a useful indication of your cognitive abilities.
At IQ-Test.org, we believe in transparency. We do not simply present an IQ score—we also explain how IQ tests work, how the results are interpreted, and what the limitations of online IQ tests are.
Learn more about IQ testingComplete the IQ test and receive your personalized IQ certificate as a free download.
The certificate documents your IQ score and confirms that you successfully completed the test.
Keep it as a personal record or share your result with friends and family.
Start the IQ test
IQ-Test.org has been providing a free online IQ test for more than ten years. The project was created to offer a transparent and well-founded alternative to many online IQ tests available on the internet.
Over the years, the IQ test has been continuously improved and expanded. Today, IQ-Test.org offers a free online IQ test, a personalized IQ certificate, detailed information about intelligence and IQ testing, and a magazine covering psychology, cognitive abilities, and scientific research.
Transparency has always been one of the core principles of IQ-Test.org. We not only present your IQ score, but also explain how IQ tests work, how the results are interpreted, and what the limitations of online IQ tests are.
Learn more about the story behind IQ-Test.orgExplore how IQ is measured, discover the IQ scores of well-known people, and find articles about intelligence and cognitive abilities.
Learn how IQ scores are calculated, what the average IQ is, and how IQ tests should be interpreted.
Learn more
Explore the reported IQ scores of famous people, including Albert Einstein, Isaac Newton, Madonna, and Shakira.
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Discover carefully selected books, articles, and resources about intelligence, psychology, and cognitive science.
Learn moreThe latest articles from our magazine all about IQ, intelligence, and knowledge.
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Read moreYes. The IQ test on IQ-Test.org is completely free. Your IQ score, detailed results, and personalized IQ certificate are all available at no cost. There are no hidden fees or paywalls.
No. You can take the IQ test without creating an account or providing personal information. If you choose to generate a personalized IQ certificate, you may enter your name. This information is used only to create the certificate and is not stored.
The time limit is 30 minutes. Once the time has expired, your test is automatically evaluated. The questions are intentionally designed so that most participants do not finish all 47 questions.
Yes. After completing the IQ test, you can create and download your personalized IQ certificate free of charge.
A well-designed online IQ test can provide a useful estimate of your cognitive abilities. However, it cannot replace a professional psychological assessment conducted under standardized conditions.
IQ-Test.org combines a completely free IQ test with transparent scoring, more than ten years of continuous development, and results based on over 100,000 completed IQ tests. Every participant also receives a personalized IQ certificate free of charge.
IQ-Test.org was created to provide a high-quality online IQ test without charging users. Every completed test also helps improve the statistical comparison database. As the number of completed tests grows, new results can be compared more accurately. That is why the IQ test will continue to remain free.
Hi, I'm Peter, the founder of IQ-Test.org. I've been developing and improving this project for more than ten years.
IQ-Test.org began with a simple idea. I was looking for a free online IQ test with transparent and understandable results, but I couldn't find one that met my expectations. So I decided to build it myself.
My professional background combines education and engineering. Over the years, I have worked extensively with technology, analytical problem-solving, and explaining complex topics in a clear and accessible way. I also hold a Bachelor of Education and a Master of Science.
My goal has always been to keep the IQ test free while providing results that are as transparent, understandable, and honest as possible.
If you have any questions, suggestions, or feedback, I'd be happy to hear from you.