API Reference - Web SDK
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However, the reference documentation doesn't differentiate between the subset of classes and namespaces supported by the Web SDK versus those only supported by Node.Js and React Native. The Web SDK doesn't support creating a local Realm database or using sync. Instead, web apps built with the Wek SDK use GraphQL and the Query API to query data stored in Atlas.
Supported Classes & Namespaces
The Realm Web SDK supports the following classes and namespaces documented in the API reference: