Apache Avro to Protobuf Converter
Convert Apache Avro schemas, records, enums, and maps into standardized Proto3 definitions in your browser.
At a glance
Apache Avro to Protobuf Converter transforms Apache Avro (.avsc) schema records, enums, maps, and unions into valid Protocol Buffers (Proto3) definitions. It maps primitive types, repeated arrays, enum symbols with zero-index invariants, and nested records into typed messages in browser memory.
100% Client-Side In-Browser Apache Avro to Protobuf Transpiler
Compile Apache Avro (.avsc) records, primitive types, complex enums, arrays, maps, and unions directly into Protocol Buffers (Proto3) with zero server uploads.
Why Use This Apache Avro to Protobuf Converter?
How to Use Apache Avro to Protobuf Converter
Paste Avro Schema
Paste your Apache Avro (.avsc JSON) schema into the editor or select a built-in preset.
Configure Protobuf Options
Customize your target Proto3 package name and preferred code indentation.
Copy or Export .proto
Instantly copy the generated Proto3 schema or download it as a .proto definition file.
Avro to Protobuf example
Demonstrates converting an Avro User record with primitive and array fields into a Proto3 message.
{
"type": "record",
"name": "User",
"fields": [
{ "name": "id", "type": "string" },
{ "name": "age", "type": "int" },
{ "name": "tags", "type": { "type": "array", "items": "string" } }
]
}
syntax = "proto3";
package data.v1;
message User {
string id = 1;
int32 age = 2;
repeated string tags = 3;
}
Technical Specifications & Engine Details
| Specification | Details |
|---|---|
| Supported Formats | Text / Input → Rendered Result |
| Execution Mode | 100% Client-Side In-Browser (client) |
| Browser Requirements | Requires modern web browser with ECMAScript 6+ and standard DOM Web APIs. |
| Performance Constraints | Client browser memory limit (typically 1–2 GB RAM); processing speed depends on client hardware. |
100% Client-Side Privacy Guarantee
Your schema files remain strictly on your local device. Zero data is transmitted to external servers.
Frequently Asked Questions
How are Avro primitive types mapped to Protobuf?
How are Avro unions handled in Protobuf?
Why does the generated Proto3 enum include an UNSPECIFIED entry?
Is any schema data transmitted to a server?
Methodology
This tool runs entirely in your browser. The example above shows a representative input and the result it produces.
Last updated .