JSON to Avro Converter

About JSON to Avro Converter

Convert JSON data to Apache Avro schema and data format. Avro is a row-oriented remote procedure call and data serialization framework developed within Apache's Hadoop project.

Key Features

• Schema Generation: Automatically generates Avro schema from JSON structure
• Type Inference: Intelligently infers Avro types (string, long, double, boolean, array)
• Nested Support: Handles nested objects and arrays
• Null Safety: Uses union types for nullable fields
• File Upload: Upload JSON files directly or paste data
• Instant Preview: Real-time conversion as you type

How to Use

1. Input JSON Data: Paste your JSON data or upload a .json file
2. Review Output: The Avro schema and data updates automatically
3. Copy or Download: Use the Copy or Download button to save your Avro output

Example Conversion

JSON Input:

[
  {"name": "John", "age": 28, "active": true},
  {"name": "Jane", "age": 34, "active": false}
]

Avro Output:

// Avro Schema
{
  "type": "record",
  "name": "JSONData",
  "namespace": "com.example",
  "fields": [
    {"name": "name", "type": ["null", "string"]},
    {"name": "age", "type": ["null", "long"]},
    {"name": "active", "type": ["null", "boolean"]}
  ]
}

// Data (JSON format for Avro)
{"name":"John","age":28,"active":true}
{"name":"Jane","age":34,"active":false}

Common Use Cases

• Big Data: Prepare JSON data for Hadoop, Spark, or Kafka
• Data Serialization: Convert JSON to efficient binary format
• Schema Evolution: Generate schemas for data versioning
• API Integration: Transform REST API responses to Avro

Avro Type Mapping

• String: JSON strings → Avro string
• Integer: JSON integers → Avro long
• Float: JSON decimals → Avro double
• Boolean: JSON booleans → Avro boolean
• Array: JSON arrays → Avro array
• Null: All fields support null via union types

Privacy & Security

All conversions happen locally in your browser. Your JSON data is never uploaded to any server, ensuring complete privacy and security.