Rust to Protobuf Converter - Generate Protocol Buffer Schema from Rust Online
Free online Rust to Protobuf converter tool to generate Protocol Buffer schema files from Rust struct definitions with automatic type mapping.
How to Convert Rust to Protobuf - Step by Step Guide
Input Your Rust Struct Definitions
Start by entering your Rust struct definitions that need to be converted to Protocol Buffer schema:
Example: Rust Struct Input
Here's a typical Rust struct ready for protobuf conversion:
pub struct User { pub id: i32, pub name: String, pub email: String, pub roles: Vec<String>, pub active: bool, pub profile: UserProfile, } pub struct UserProfile { pub department: String, pub experience_years: i32, pub skills: Vec<String>, }
Automatic Schema Generation
The tool automatically analyzes your Rust structs and generates a corresponding Protocol Buffer schema:
Example: Generated Protobuf Schema
The same Rust structs, now converted to protobuf schema:
syntax = "proto3"; package example; message User { int32 id = 1; string name = 2; string email = 3; repeated string roles = 4; bool active = 5; UserProfile profile = 6; } message UserProfile { string department = 1; int32 experience_years = 2; repeated string skills = 3; }
Copy or Download Protobuf Schema
Get your generated protobuf schema ready for use! Multiple export options available:
Example: Generated Protobuf Schema
The same Rust structs, now converted to protobuf schema:
syntax = "proto3"; package example; message User { int32 id = 1; string name = 2; string email = 3; repeated string roles = 4; bool active = 5; UserProfile profile = 6; } message UserProfile { string department = 1; int32 experience_years = 2; repeated string skills = 3; }
Frequently Asked Questions
Why convert Rust structs to Protobuf?
Converting Rust structs to Protobuf enables efficient serialization, cross-language compatibility, and is essential for building gRPC services and microservices architectures with Rust.
What Rust types are supported?
This tool supports all basic Rust types (String, i32, i64, f32, f64, bool), Vec (converted to repeated fields), and nested structs (converted to nested messages).
Can I convert multiple Rust structs at once?
Yes! The tool automatically detects and converts all struct definitions in your input, including nested structs, and generates corresponding protobuf messages.
How are Rust field names handled?
Rust field names (typically snake_case) are preserved in the protobuf schema, which also uses snake_case convention. This makes the conversion seamless and maintains naming consistency.
Is this Rust to Protobuf converter completely free?
Yes, completely free with no file size limits, no registration required, and unlimited usage. All conversion features are available at no cost.