Cloud-based software testing started in the early 2000s when cloud computing became more popular. At first, software testing was done on personal computers, which had limited resources and made it hard for people to work together. As cloud technology improved, the need for testing software in the cloud grew. Companies started using cloud-based testing tools to make their work easier, save money, and make testing more accessible. Over time, tools like Selenium, JMeter, and BrowserStack were developed, making it easy for teams to test software in the cloud.