THE .NET REGEX ENGINE. ZERO SERVER.
Let your regex
weather the storm.
Real .NET regular expressions, running entirely in your browser.
Your patterns and text stay on your device.
Regular expression
Results
Getting ready to test your expression.
Invariant culture · UTF-16 positions · 1 second regex timeout · Runs in a separate worker
THIS IS C#. THIS IS WEBASSEMBLY.
Your language.
A whole new place to run it.
This tester uses C# 15 and the .NET regex engine, compiled ahead of time with NetWasm. A static website. No backend. No C# compiler download.