EdrawMax is one of the leading free value chain diagram makers in the market. The free value chain diagram maker has tons of predefined templates that customize the layout as per your requirement. You can also choose to create the value chain diagram from scratch if you want, as EdrawMax has free value chain symbols that make the entire process extremely easy. The below Value Chain is categorized into primary and support activities. Primary Activities can be inbound logistics, operations, outbound logistics, marketing and sales, and service. In contrast, the Support Activities can be firm infrastructure, human resource management, technology development, and procurement. In the below image, Margin implies that organizations realize a profit margin that depends on their ability to manage primary and support activities.