The function of a load testing tool in software development is to evaluate an application’s performance under specific conditions. These tools simulate a range of user loads to assess how the system behaves under stress, identifying potential bottlenecks and vulnerabilities. By conducting load testing, developers can ensure that applications remain stable and responsive when subjected to high traffic, enhancing user experience. Moreover, load testing helps optimize resource allocation, enabling organizations to scale their infrastructure effectively. Ultimately, these tools play a vital role in delivering high-quality software that meets user expectations.