Welcome to Online Professional Certification Center. If you want to continue learning and get professional certification in parallel to your job, school, college or home-life you are at right place. We offer online certification exams on a range of subjects including English Grammar certification, English Vocabulary certification and certification in computer subjects. Our information technology certification exams are for beginners as well as experienced computer users. All our certification tests are free of cost (any number of attempts). Once you pass a certification test, you can apply for a certificate for very nominal fee. For more information go through