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PostSharp Technologies

PostSharp Technologies builds compiler-level developer tools for .NET, including the PostSharp aspect framework and the Metalama toolkit.

Last updated September 16, 2026

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Overview

PostSharp Technologies is a Czech company that builds compiler-level developer tools for .NET, helping developers cut boilerplate, enforce architecture, and ship clean code. Its offerings include PostSharp, an aspect framework for .NET based on MSIL rewriting that has been in production since 2004, and Metalama, an open-source patterns and architecture toolkit built on Roslyn. The company describes itself as privately owned with sole ownership, profitable since 2010, and relying entirely on license revenue.

History

The PostSharp story began in 2004, when Gaël Fraiteur, worn down by the monotony of writing repetitive code, started the project. PostSharp Technologies builds compiler-level developer tools for .NET, and its PostSharp aspect framework, based on MSIL rewriting, has been in production since 2004 and is updated for each new version of .NET, C#, and Visual Studio. The company later introduced Metalama, an open-source patterns and architecture toolkit built on Roslyn. PostSharp Technologies describes itself as a privately owned company with sole ownership that does not rely on venture capital or loans, has been profitable since 2010, and relies entirely on revenue from the sale of licenses.

Products and positioning

Compiler-level developer tools for .NET that cut boilerplate, enforce architecture, and ship clean code deterministically.

  • PostSharp

    A proven aspect framework for .NET based on MSIL rewriting, in production since 2004 and updated for each new version of .NET, C#, and Visual Studio.

  • Metalama

    An open-source patterns and architecture toolkit built on Roslyn.

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