Crystallize

Crystallize is a Norwegian headless commerce platform, founded in 2018, that folds product information management and commerce into one GraphQL API rather than treating them as separate systems a team has to keep in sync. That is its main distinction from Saleor elsewhere in this list: Crystallize starts from rich product content — images, variants, structured descriptions — and layers commerce on top, which suits catalogues where the product story matters as much as the checkout.

Pricing is metered and published: the Particle tier is free with pay-as-you-go overage (one tenant, 100 items, 25 orders a month before charges start), Atom costs $949 a month for a small team's real volume, and Crystal is a custom enterprise plan with SSO and dedicated support. The free tier has no time limit, which makes it one of the few platforms in this list a developer can genuinely try without a sales call.

As with Saleor, there is no storefront included — a team builds the front end against the API — so Crystallize is an engineering choice, not a merchant signup. Against SCAYLE or Centra, its differentiator is the built-in PIM rather than fashion-specific tooling, which suits content-heavy catalogues in furniture, food or B2B more than it suits a pure apparel retailer.

What Crystallize does well

• Free tier with no time limit, no sales call needed
• Product content and commerce in one GraphQL schema
• Transparent, published metered pricing
• Norwegian company, EEA jurisdiction
• Built-in PIM removes a separate content system

Where Crystallize falls short

• No storefront included — a build project either way
• Overage costs on the free tier can surprise at scale
• Requires front-end engineering capacity
• Smaller ecosystem than Saleor or Shopware

Standout feature. Product content and checkout in one schema, with a genuinely free tier instead of a sales call.