Software Testing is the process of evaluating a software application to ensure it works correctly, meets requirements, and delivers a reliable user experience. It helps detect bugs early, reduces risks, and guarantees performance, security, and efficiency. Testing can be done manually or through automation across levels such as unit, integration, system, and user acceptance testing. By focusing on both functionality and performance, software testing ensures the final product is high-quality and cost-effective. Many professionals enhance their skills through structured Software Testing Course in Chennai and specialized testing courses at FITA Academy, where they gain hands-on exposure and industry-relevant knowledge to build successful careers.