Regex Storm with NetWasm

THE .NET REGEX ENGINE. ZERO SERVER.

Regex Storm:
.NET Regex Tester.

Test real .NET regular expressions entirely in your browser.
Your patterns and text stay on your device.

Regular expression

Regex options

Results

Loading .NET regex engine…

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. Its 262,500-byte Brotli-compressed Wasm payload runs as a static website, with no backend or C# compiler download. The figure excludes JavaScript, HTML, and other page assets.

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