why Serializers used for? easy to understand

in this blog Iam trying to explain about functions of Serializers,

Serializers are a concept commonly used in web development, particularly in web frameworks and technologies that involve data serialization and deserialization

Serializers is like a tool that Take your Complex data and Convert in to Comon language json,xml, so that other server can understand Easly.

Serializers also make sure that the data you receive is correct and follows certain rules. It checks if the data makes sense before processing it.