JavaScript
- AjaxView is a free profiling tool for JavaScript by Microsoft Research.
- Firebug is a Firefox plug-in for web development, also has a profiler for JavaScript.
- Web Inspector, a built-in tool in Webkit based browsers like Apple Safari 3+ and Google Chrome also has a profiler for Javascript
- Google Speed Tracer part of Google Web Toolkit is a more detailed performance analysis tool capable of capturing in-depth data from browser rendering to Javascript profiling. Although, it is currently available only for developer versions of Google Chrome.
Read more about this topic: List Of Performance Analysis Tools