Perfect Pronunciation
Standard North American pronunciation exercises. Part of Merriam Webster’s Learner’s Dictionary. To be sure you are pronouncing properly, it is best to do these activities with an English-speaking teacher or tutor first and review the exercises individually afterwards.

Low Intermediate to Advanced

BBC Learning English Pronunciation Tips
Explanations, listening and activities about English pronunciation. British accent.

English Club (Pronunciation Page)
Good basic explanations on English pronunciation rules.

Train Your Accent
Lessons in standard North American pronunciation.

Low Intermediate to High Intermediate

Eva Easton’s Authentic American Pronunciation
Consonant sounds and vowel sounds in standard North American English. Explanations, audio samples and quizzes.

All

SpokenSkills
Listen to consonant and vowel sounds instandard North American Englishusing practice sentences and record yourself to compare. You can also find exercises on intonation, stress patterns and minimal pairs. 

All