Several reputable online platforms offer GMAT practice tests that can significantly aid students in assessing and enhancing their performance. The Graduate Management Admission Council (GMAC) provides official practice exams that closely mirror the actual test in format and scoring, allowing students to establish a baseline and identify areas for improvement. Manhattan Prep offers comprehensive practice tests that help build familiarity with the test setting and serve as a measure for instructors to gauge student performance. Magoosh provides an unofficial GMAT practice test for free, complete with answer keys and explanations, and also offers planning tools to further prepare for the GMAT. GMAT Club Forum offers a vast collection of questions and expert explanations, along with a community of students and test-takers for support. Experts Global provides free GMAT practice tests based on real exam questions, developed by top-tier instructors, and offers tools for thorough preparation. These practice tests help students assess their strengths and weaknesses, improve time management skills, enhance familiarity with the test format, and develop strategic test-taking skills, ultimately boosting confidence and readiness for the actual exam.