JSON to Avro Schema Converter

Convert JSON Schema definitions to Apache Avro format for big data pipelines

JSON Schema Input (load example)

Avro Schema Output

Namespace: Record Name:

Copied!

How to Use

Paste your JSON Schema definition in the left input field
Optionally set a namespace (e.g., com.mycompany.data) and record name
Click "Convert to Avro" to generate the Avro schema
Copy the generated Avro schema using the "Copy Avro Schema" button

About This Tool

This converter transforms JSON Schema definitions into Apache Avro schema format. Avro is a popular data serialization format used extensively in big data ecosystems including Apache Spark, Apache Kafka, and AWS services like Glue, Kinesis, and EMR.

The tool supports common JSON Schema types and converts them to their Avro equivalents:

string → string
integer → long
number → double
boolean → boolean
array → array
object → record
Nullable fields are wrapped in ["null", type] unions

Use Cases

Converting API response schemas for data lake ingestion
Creating Avro schemas for Kafka topics from existing JSON documentation
Preparing schemas for AWS Glue Schema Registry
Building Apache Spark data pipelines with strongly-typed schemas

Privacy: This tool runs entirely in your browser. No data is sent to any server. Your schemas stay on your device.