If you have ever research about standardized tests for non-English speakers, you would have come across both the TOEFL and the IELTS. The TOEFL is short for Test of English as a Foreign Language, and the IELTS is short for International English Language Testing System. They are both widely accepted tests to certify your level of English proficiency. Some specific English-speaking countries prefer one test over another, but generally, they can both be accepted almost anywhere. If they are so similar to each other, which test should you take? That depends on what your strong suit is and what your program requires.