Prefix the Bugs in Your Code

Understand what your code is doing and find bugs you didn’t even know existed.

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Prefix is used by over 20,000 developers in more than 140 countries!

Use Prefix every day while you are writing and testing your code.

Prefix is designed for daily use by developers who are developing .NET or Java web applications.

Note: Prefix currently only works on Windows. We plan to support macOS in the future.

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Prefix supports .NET & Java applications running on Windows.

Stop sorting through messy log files. See the exact log messages for a single web request.

Prefix can instantly show you all the exceptions hidden in your code.

People see things with Prefix they never expected. Why does that web request do 38 database calls?

Including SQL parameters, affected records and how long it took to download the result set.

Captures detailed code-level traces of each web request.

Prefix is designed to be used every day.

Provides method and line level performance reporting.

Typically used only when CPU usage is high.

Not sure what the differences are between Prefix and Retrace? No problem!

For your workstation

Lightweight web request profiler

For your servers

Developer friendly APM