Open source alternative for dot net [duplicate]

This question already has answers here: 开发者_JAVA百科 Closed 12 years ago.

Possible Duplicate:

.net open source and running platform choices

Can any one tell me which is the perfect open source alternative for .NET.

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Mono.

Also you are probably not aware but Microsoft has published the source code of the .NET Framework itself so why looking for an alternative?

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Mono

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Mono is an open source .NET implementation.

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Mono is certainly the best open source .net implementation, but I would not suggest it as "perfect" (what you were asking for). When I compared it with MS.net it was definitely not as fast and you don't get all the features that MS offers. You should read about these things a bit more before commiting to Mono.

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http://www.mono-project.com/Main_Page

Have a look at mono project , but a perfect one doesn't exists

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Mono - in their own words:

Mono is a software platform designed to allow developers to easily create cross platform applications. It is an open source implementation of Microsoft's .Net Framework based on the ECMA standards for C# and the Common Language Runtime. We feel that by embracing a successful, standardized software platform, we can lower the barriers to producing great applications for Linux.