Advantages of using testing tools :

1. Speed. The automation tools tests the software under tests with the very faster speed. There‗s a vast difference between the speed of user entering the data and the automated tools generating and entering the data required for the testing of the software. Speed of this software also completes the work faster.
2. Efficiency. While testers are busy running test cases, testers can't be doing anything else. If the tester have a test tool that reduces the time it takes for him to run his tests, he has more time for test planning and thinking up new tests.
3. Accuracy and Precision. After trying a few hundred cases, tester‗s attention span will wane and he may start to make mistakes. A test tool will perform the same test and check the results perfectly, each and every time.
4. Resource Reduction. Sometimes it can be physically impossible to perform a certain test case. The number of people or the amount of equipment required to create the test condition could be prohibitive. A test tool can be used to simulate the real world and greatly reduce the physical resources necessary to perform the testing.
5. Simulation and Emulation. Test tools are often used to replace hardware or software that would normally interface to your product. This "fake" device or application can then be used to drive or respond to your software in ways that you choose and ways that might otherwise be difficult to achieve.
6. Relentlessness. Test tools and automation never tire or give up. they can keep going and going and on and on without any problem; whereas the tester gets tired to test again and again.

OR

• Reduce time of testing

• Improve the bugs finding

• Deliver the quality software/product

• Allow to run tests many times with different data

• Getting more time for test planning

• Save resources or reduce requirement

• It is never tired and expert person can work at a time many tools.

Disadvantages of using testing tools :

• It's more expensive to automate. Initial investments are bigger than manual testing

• Manual tests can be very time consuming.

• You cannot automate everything; some tests still have to be done manually.

• You cannot rely on testing tools always.