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Gliffy is a free Web-based diagramming tool that can greatly assist IT departments in preparing software and network documentation. Investigate Gliffy as a free and practical alternative to Microsoft Visio.
Belonging to the Web 2.0 era of online collaborative technologies, Gliffy has been developed by Gliffy Inc. as a platform-independent and fully-functional diagramming solution. Although it does not support the Microsoft Visio VSD format, key features of Gliffy include: