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blockdiag vs WebPageTest

A side-by-side look at blockdiag and WebPageTest. For an in-depth review of either product, follow the links below.

blockdiag

blockdiag

Development

blockdiag is an open-source Python library and command-line tool that generates block-style diagram images from simple text files. It supports multiple diagram types like block diagrams, sequence diagrams, activity diagrams, and more.

diagramblock-diagramsequence-diagramactivity-diagram
WebPageTest

WebPageTest

Network & Admin

WebPageTest is an open-source website performance testing tool. It allows users to test website load speeds from different locations around the world and provides performance metrics like First Contentful Paint, Speed Index, and Time to Interactive.

performanceload-testingopen-source

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