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 20,000 developers in over 140 countries!
Detailed trace of every web request
Requires no config or code changes
Runs fast and is always ready
"Stackify Prefix is like getting a new prescription for glasses. I feel like I see everything #DevNirvana"
Prefix is not your standard code profiler
Understand why Prefix is different.
Prefix web request profiler
Captures detailed code-level traces of each web request.
Prefix is designed to be used every day.
Standard code profiler
Provides method and line level performance reporting.
Typically used only when CPU usage is high.
Download Prefix Now for Free!
Prefix supports .NET & Java applications running on Windows.
Find a bug, you're a hero!
Use Prefix every day while you are writing and testing your code.
- Validate the behavior of your code
- Find hidden exceptions in your code
- Identify slow SQL queries and N+1 problems
- Review the performance of your code
Tour Prefix in 90 Seconds
Want to see a live working demo?
Feature Highlights
View Your Logs by Request
Stop sorting through messy log files. See the exact log messages for a single web request.
Find Hidden Exceptions
Prefix can instantly show you all the exceptions hidden in your code.
Quickly Spot Suspicious Behaviors
People see things with Prefix they never expected. Why does that web request do 38 database calls?
View SQL Queries
Including SQL parameters, affected records and how long it took to download the result set.
"Prefix helped us find sneaky performance issues within 5 minutes of getting things up and running. #awesomesauce"
Can I use Prefix?
Prefix is designed for developers who are developing ASP.NET or Java web applications.
- .NET or Java
- Web Applications
- Windows desktop
- Servers
- GUI applications
- macOS
Note: Prefix currently only works on Windows. We plan to support macOS in the future, but it is not currently available.
Prefix is perfect to run on your second monitor!
Want Even More? Get Prefix Premium.
Prefix Premium provides some additional features over the free version.
- Code improvement suggestions
- Profile custom methods in your code
- Save and load old traces
- View traces on remote servers that have Retrace installed
- Compare performance to servers in production
Prefix Premium can be used with some console or background services. It works well for Windows Services or daemons that are self hosted web applications, job schedulers, process messages off a queue, and other scenarios with defined recurring transactions.
It also includes a FREE license of Retrace for your pre-production servers.
Prefix vs Retrace
Not sure what the differences are between Prefix and Retrace? No problem!
For your workstation – free!
Lightweight web request profiler
- Used during development
- View details of individual web requests
For your servers – $50 month per server
Developer friendly APM
- Used in QA and production environments
- Centralized logging & error tracking
- Comprehensive application monitoring
- Application & server metrics