Diagnosis of brain tumour is a significant health problem that should be detected shortly and accurately for effective and timely treatment. The effects of incorrect or late diagnosis are dramatic but point to an increasing need for enhanced diagnostics. In our paper “Detection of Brain Tumour using MRI Scan” Used ML Algorithms to accurately process the MRI Images and discover tumour. The developed solution takes the shape of an easy-to-use android app that is available for the users, users here can refer to anyone for example medical practitioner and the patient. By automating the diagnostic process, the system minimizes the reliance on manual interpretation, providing results that are faster, more accurate and more dependable.