7.8k
Valibot
Valibot is a modular and type safe schema library designed for validating structural data with ease and reliability. 🤖
✅
Validation👨💻
Development🔷
TypeScript
3 Open Source Alternatives to Zod
Looking for an open-source alternative to Zod? Below are 3 community-built tools that offer similar functionality — all free, open source, and ready to use or self-host. Ranked by GitHub stars.
7.1k
Superstruct
A simple, composable, and powerful way to validate data structures in JavaScript and TypeScript applications.
✅
Validation🟡
JavaScript🔷
TypeScript👨💻
Development
378
Untypeable
Get type-safe access to any API, with a zero-bundle size option. Ideal for developers who want type safety without added package weight.
🔁
API👨💻
Development🔷
TypeScript🛠️
Tools
Frequently asked questions
What are the best open-source alternatives to Zod?
The top picks from this list are Valibot, Superstruct, Untypeable — all maintained, free to use, and self-hostable.
Are these alternatives to Zod free?
Yes. Every tool listed here is open source and free to use. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Can I self-host an alternative to Zod?
Most of the alternatives listed are self-hostable. Check each tool's page for hosting details, system requirements, and licensing terms.
Stay Updated!
Get notified about new tools and updates to existing ones.