The choice depends on your strengths. TOEFL is more academic and computer-based, while IELTS offers both paper and computer versions and focuses more on real-life communication. To understand which suits you better, take a free TOEFL practice test to experience the structure and difficulty. Then, try writing a sample IELTS Task 2 and run it through an IELTS essay checker to see how comfortably you can express arguments. Comparing your comfort level in both will help you make a confident decision.