Protobuf to Zod Schema Generator
Convert Protocol Buffers (.proto) definitions into runtime TypeScript Zod schemas and inferred static types directly in your browser.
At a glance
Protobuf to Zod Schema Generator is a free client-side tool that compiles Protocol Buffers (.proto) definitions into runtime TypeScript Zod schemas. It accurately translates messages, enums, repeated arrays, maps, and oneof blocks with static type inference. Zero server uploads — everything compiles in browser memory.
100% Client-Side In-Browser Zod Schema Generator
Protocol Buffers (.proto) definitions compile into runtime TypeScript Zod schemas locally in your browser memory. Zero code or schema uploads.
How Protobuf to Zod Schema Generation Works
Validating incoming gRPC network payloads or Protocol Buffers binary deserializations in TypeScript web apps requires robust runtime validation. While static types protect compilation, Zod schemas enforce type safety at runtime. This generator analyzes Proto3 syntax structures and produces isomorphic Zod validators with zero server round-trips.
Scalar & Integer Guarding
Maps Protobuf scalars (string, bool, float) to standard Zod types. Integer types (int32, uint32, fixed32) are constrained with z.number().int().
Collections & Maps
Repeated fields translate cleanly to z.array(...), and dictionary structures map<K, V> compile to z.record(z.string(), ...) schemas.
Oneof & Recursive Messages
Mutually exclusive oneof declarations compile into optional validator properties, and nested message definitions are recursively unpacked into standalone top-level Zod schemas.
Why Use This Protobuf to Zod Schema Generator?
How to Use Protobuf to Zod Schema Generator
Paste Proto Definition or Upload .proto
Enter your proto3 message syntax or drop a .proto file into the editor.
Configure Zod Options
Toggle export keywords, inferred TypeScript types (z.infer), and integer constraints.
Copy or Download Zod Code
Copy the generated Zod validation code directly to your clipboard or download as a .ts file.
gRPC User Profile Proto to Zod Schema
Parses the proto3 message definition and compiles it into a runtime Zod validator schema with static TypeScript type inference.
syntax = "proto3";
message UserProfile {
string user_id = 1;
string email = 2;
bool is_active = 3;
repeated string tags = 4;
}
export const UserProfileSchema = z.object({
user_id: z.string(),
email: z.string(),
is_active: z.boolean(),
tags: z.array(z.string())
});
export type UserProfile = z.infer<typeof UserProfileSchema>;
Technical Specifications & Engine Details
| Specification | Details |
|---|---|
| Supported Formats | TEXT/PLAIN, .PROTO, .TXT → TEXT/TYPESCRIPT, TEXT/PLAIN, .TS |
| Execution Mode | 100% Client-Side In-Browser (client) |
| Browser Requirements | Requires modern web browser with ECMAScript 6+ and standard DOM Web APIs. |
| Performance Constraints | Runs 100% client-side in browser memory. Performance bounded by local device RAM. |
100% Client-Side Privacy Guarantee
Your proto definitions remain strictly on your local device. Zero data is transmitted to external servers.
Frequently Asked Questions
Are my proto files uploaded to an external server?
Does it support proto3 repeated fields and maps?
Does the output include TypeScript type inference?
How does the tool handle oneof fields?
Methodology
This tool runs entirely in your browser. The example above shows a representative input and the result it produces.
Last updated .