Prefix is the real-time code profiler that puts the power of Application Performance Monitoring in the hands of developers. Validating code as it is written, Prefix provides smart suggestions on quick code improvements based on industry best practices. Running on your desktop, Prefix collects every request as you run your application, providing instant feedback on precisely what your code is doing. Prefix works with .NET, Java, Python, Node.js, Ruby and PHP programming languages and helps you quickly identify and resolve issues by delivering increased visibility into poor-performing requests with distributed tracing, detailed trace logs and a consolidated log viewer.