Manual testing in software testing

Manual testing is the process of executing and running test cases or exploring the application to find any deviation from existing behavior without the help of any tool.
Manual Testing is the most ancient and important type of testing and helps find bugs in the software system. Any new application must be manually tested before it can be automated with the help of any tool.
Manual Testing requires more effort but is necessary to check automation feasibility. Read for more about : Manual testing in software testing

Link: https://www.webomates.com/blog/manual-testing/manual-testing/

Source: https://www.webomates.com/blog/manual-testing/manual-testing/