Circe

Lesson in the Scala Roadmap · Stage 32: Macros & the Type System

Last updated 14 September 2026

What is Circe?

Circe is a JSON library for Scala that is part of the Cats ecosystem. It provides a functional way to handle JSON data, including encoding and decoding using Encoder and Decoder type classes. Circe aims to simplify working with JSON by hiding implementation details in a simple API and offers good performance and complete documentation.

Study this in the interactive course See the whole Scala roadmap

Free resources to learn Circe

ArticleTutorial on Circe
ArticleCirce Tips and Tricks

Circe: common questions

Can I learn Circe in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Circe in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Circe tutorial for beginners?

It is lesson 163 of 165 in the free Scala roadmap, in stage 32, Macros & the Type System. If you are new to Scala, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.