Free, Fast, Native.

The best FIX Engine for .NET

QuickFIX/n implements the FIX protocol on .NET.

QuickFIX/n is 100% free and open source with a liberal license.

To get started, visit the downloads page, take the tutorial, or examine some example applications.

Commercial support provided by Connamara Systems.

About FIX

FIX is an electronic messaging protocol for financial transactions. The Financial Information eXchange (FIX) is an open, widely used industry standard. More information is available on the FIX protocol website.