Practice your Hangul Characters Online with this Hangul Flashcard App. It will challenge you to remember the characters! It's recommended to learn the pronunciation first through the link below.

Pronunciation

How to use? select the character groups that you want to test and then click 'Begin Test'. Once you are in all you have to do is type the Romanized equivalent and it will give you feedback. e.g. 안녕 = 'annyeong'