QA Testing (Quality Assurance Testing) is the process of validating and verifying the behavior of a software application to ensure it functions as expected. It provides an objective view of the software, helping businesses identify risks before implementation. A QA tester works with software or websites to detect bugs, performance issues, or functionality gaps. Through a combination of manual and automated testing, QA testers try to break the product or expose potential malfunctions during development. This proactive approach allows developers to fix issues early, improve user experience, and deliver reliable, high-quality software to the market. Effective software testing not only prevents faulty applications from reaching customers but also builds trust, enhances performance, and reduces long-term maintenance costs.