Are chakra's used in Buddhism?
But are they also used in buddhism?


There are some references to chakra in certain types of Buddhism. E.g. see Are the Chakras present in the original Buddha&#39;s teachings?


  Or what is similar to chakra's in buddhism?


In Theravada Buddhism the closest is the places to fix attention or resting places of attention. See my answer to: Are the Chakras present in the original Buddha's teachings?