Apache Avro to JSON Schema Converter
Convert Apache Avro (.avsc) schemas into standardized JSON Schema specifications directly in your browser.
At a glance
Apache Avro to JSON Schema Converter transforms Avro Schema (.avsc) files into compliant JSON Schema (Draft-07 and 2020-12) documents. It translates primitive types, logical formats like timestamp-millis and uuid, optional union types, nested records, and maps into structured JSON Schema properties in browser memory.
100% Client-Side In-Browser Apache Avro to JSON Schema Converter
Convert Apache Avro Schema (.avsc) files directly into JSON Schema (Draft-07 & 2020-12) specifications in your browser memory.
Generation Options
int → integer (int32), long → integer (int64), timestamp-millis → date-time, uuid → uuid, and nullable unions → optional properties.
Why Use This Apache Avro to JSON Schema Converter?
How to Use Apache Avro to JSON Schema Converter
Paste Apache Avro Schema
Enter or paste your .avsc JSON schema definition into the Avro editor.
Configure Schema Options
Select your desired JSON Schema draft (2020-12 or Draft-07) and preferred nullability style.
Copy or Export JSON Schema
Review the generated JSON Schema specification, copy it to clipboard, or export as a .json file.
Apache Avro to JSON Schema Conversion Output
Converts Avro record into a Draft 2020-12 JSON Schema specification with int64 formats, date-time format for timestamp-millis, nullable type array, and required properties array.
{
"type": "record",
"name": "UserEvent",
"fields": [
{ "name": "id", "type": "long" },
{ "name": "username", "type": "string" },
{ "name": "createdAt", "type": { "type": "long", "logicalType": "timestamp-millis" } },
{ "name": "nickname", "type": ["null", "string"], "default": null }
]
}
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"title": "UserEvent",
"type": "object",
"properties": {
"id": {
"type": "integer",
"format": "int64"
},
"username": {
"type": "string"
},
"createdAt": {
"type": "string",
"format": "date-time"
},
"nickname": {
"type": [
"string",
"null"
],
"default": null
}
},
"required": [
"id",
"username",
"createdAt"
]
}
Technical Specifications & Engine Details
| Specification | Details |
|---|---|
| Supported Formats | APPLICATION/JSON, APPLICATION/AVRO, TEXT/PLAIN, .AVSC → APPLICATION/JSON, APPLICATION/SCHEMA+JSON, TEXT/PLAIN, .JSON |
| Execution Mode | 100% Client-Side In-Browser (client) |
| Browser Requirements | Modern browser with JavaScript enabled. |
| Performance Constraints | Runs client-side in browser memory. Performance and file limits are bounded by available local device RAM. |
100% Client-Side Privacy Guarantee
Your files remain strictly on your local device. Zero data is transmitted to external servers.
Frequently Asked Questions
Are my Avro schemas uploaded to any server?
Which Avro logical types are supported?
How are Avro unions converted to JSON Schema?
Can I convert complex nested records and enums?
Methodology
This tool runs entirely in your browser. The example above shows a representative input and the result it produces.
Last updated .