Ask HN: I Built a WebAssembly-Powered Zod Alternative – 2.5x Faster!!

Hey HN,

I’ve been using Zod for TypeScript validation, but I kept running into performance bottlenecks in high-throughput applications. So I built DHI – a WebAssembly-powered validation library that offers a familiar Zod-like API while being significantly faster.

Why I Built This:

• Zod is great, but it slows down at scale, especially with large datasets.

• DHI uses WebAssembly to execute validations at near-native speeds.

• It’s TypeScript-first and async-friendly, with built-in support for batch validation.

• I love to build things and this was just a passion project that I did in a day

Benchmarks (for 1,000,000 validations):

Library | Time Taken (ms) | Validations per sec

DHI | 3010.11 | 332,214 Zod | 5679.42 | 176,074

Features:

• Familiar API inspired by Zod.

• WebAssembly-powered for ultra-fast validation.

• Supports batch validation for high-throughput processing.

• Minimal memory overhead.

• Supports all major TypeScript types.

Example Usage:

import { dhi } from ‘dhi’;

const UserSchema = await dhi.object({ name: dhi.string(), age: dhi.number(), email: dhi.string() });

const result = UserSchema.validate({ name: “John”, age: 30, email: “john@example.com” });

console.log(result.success); // true or false

Would love your thoughts! Is this something you’d use in your projects? What’s been your biggest frustration with TypeScript validation?

There is also a live website to see the speed difference for yourself: https://dhi.trilok.ai