jsonapi-serializer

Benchmarks show significantly faster serialization times compared to alternatives like ActiveModelSerializer, optimized for speed in high-traffic APIs.

Uses a simple, readable syntax similar to Active Model Serializer, making it easy for developers familiar with AMS to adopt and maintain.

Supports compound documents, caching, sparse fieldsets, conditional fields, and key transforms, ensuring full compliance with the JSON:API spec.

As a fork of Netflix's fast_jsonapi, it benefits from ongoing community support, regular updates, and a clear migration path from the original.