Protocol Buffers Converter - Free Online Tool | PivaBox

Encode and decode Protocol Buffers messages with a .proto schema

How to Use Protocol Buffers Converter

1. Paste your .proto schema in the left textarea, defining the message structure
2. Enter your JSON data in the right textarea matching the schema
3. Click Encode to Hex to serialize, or paste hex and click Decode from Hex

Frequently Asked Questions

Is the Protocol Buffers Converter free?

Yes, PivaBox Protocol Buffers Converter is completely free to use. There are no charges or subscriptions.

Is my data uploaded to a server?

No. All encoding and decoding happens entirely in your browser. Your proto schemas and data never leave your device.

What .proto features are supported?

This tool supports simple message types with scalar fields (string, int32, int64, bool, float, double, bytes, etc.). Nested messages, enums, and repeated fields are also supported. Features like <code>oneof</code>, <code>map</code>, and custom options may have limited support. For complex schemas with imports or service definitions, the full <code>protoc</code> compiler is recommended.