Apache Avro Schema to Zod Schema Generator

Compile Apache Avro Schema (.avsc) files into clean, runtime Zod validators and inferred TypeScript types in your browser.

At a glance

Apache Avro Schema to Zod Schema Generator is a free client-side tool that compiles Apache Avro (.avsc) files into TypeScript runtime Zod schemas. It accurately translates records, arrays, enums, maps, and union nullability with optional type inference. Zero server uploads — everything compiles in browser memory.

100% Client-Side In-Browser Zod Schema Generator

Apache Avro Schema (.avsc) files compile into runtime Zod validators and inferred TypeScript types in browser memory. Zero server uploads.

Pure In-Browser
Sample Presets:
Valid Schema 0 chars
Compiles records, arrays, maps, enums, unions, and logical types
0 B
Schemas Created
0
Total Fields
0
Output Target
Zod v3
Execution
100% Client-Side

How Avro to Zod Schema Compilation Works

Consuming Apache Kafka event streams, Confluent Schema Registry records, or enterprise message brokers in modern TypeScript or Node.js applications requires both static type guarantees and runtime boundary validation. This tool parses Apache Avro Schema (.avsc) files and compiles them into production-ready Zod v3 validators with complete type safety.

Spec-Accurate Nullability & Unions

In Apache Avro, optional attributes are represented as union types containing "null" (e.g. ["null", "string"]). Our generator maps these into z.string().nullable().optional() while compiling multi-type unions into z.union([...]).

Recursive Nested Extraction

Deeply nested Avro records and enums are recursively identified and extracted into clean, top-level Zod schemas (e.g. AddressSchema) so that reusable child schemas remain modular and easily exported.

Runtime Validation & Inferred Types

With one click, generate both runtime validation rules and zero-cost inferred static types (z.infer<typeof ...>) directly in your browser. No server calls, telemetry, or dependencies required.

Why Use This Apache Avro Schema to Zod Schema Generator?

100% Client-Side Privacy: Your enterprise schema contracts never leave your local device.
Spec-Accurate Nullability & Unions: Maps Avro union nullability to .nullable().optional() and multi-type unions to z.union.
Recursive Record Extraction: Automatically creates clean top-level Zod schemas for nested models.
TypeScript Type Inference: Generates accompanying inferred static types via z.infer<typeof Schema>.

How to Use Apache Avro Schema to Zod Schema Generator

1

Paste Avro Schema or Upload .avsc

Enter your Avro schema JSON or drop an .avsc file into the editor.

2

Configure Zod Options

Toggle export keywords, inferred TypeScript types (z.infer), and integer constraints.

3

Copy or Download Zod Code

Copy the generated Zod validation code directly to your clipboard or download as a .ts file.

Kafka Clickstream Event Schema to Zod Schema

Compiles the Avro record into a production-grade Zod validator and inferred TypeScript type with exact nullability.

Apache Avro Schema (.avsc) Source
{
  "type": "record",
  "name": "ClickEvent",
  "fields": [
    { "name": "id", "type": "string" },
    { "name": "referrer", "type": ["null", "string"] },
    { "name": "tags", "type": { "type": "array", "items": "string" } }
  ]
}
Generated Zod Schema & Types Processed
import { z } from 'zod';

export const ClickEventSchema = z.object({
  id: z.string(),
  referrer: z.string().nullable().optional(),
  tags: z.array(z.string())
});

export type ClickEvent = z.infer<typeof ClickEventSchema>;

Technical Specifications & Engine Details

Technical specifications and engine details for Apache Avro Schema to Zod Schema Generator
Specification Details
Supported Formats APPLICATION/JSON, TEXT/PLAIN, .AVSC, .JSON, .TXT → TEXT/TYPESCRIPT, TEXT/PLAIN, .TS, .ZOD.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.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

Your schemas remain strictly on your local device. Zero data is transmitted to external servers.

Frequently Asked Questions

Are my Avro schemas uploaded to an external server?
No. All schema parsing and Zod code generation happen 100% locally in your browser. Your private schema definitions, field names, and structures never leave your local device.
How does the tool handle Avro union nullability in Zod?
Avro union types containing 'null' (e.g. ['null', 'string']) are compiled into .nullable().optional() on the corresponding Zod validator.
Does the output include TypeScript type inference?
Yes. When the type inference option is enabled, the tool automatically generates export type X = z.infer<typeof XSchema>; for every record schema.
Does it support nested records and enums?
Yes. Nested record definitions are recursively extracted into standalone Zod schemas, and Avro enums compile into z.enum([...]).

Methodology

This tool runs entirely in your browser. The example above shows a representative input and the result it produces.

Last updated .