Validation & Types · comparison
Zod vs Valibot
Both Zod and Valibot are validation & types. Here's how they compare at a glance — and remember you can add both to your stack and ask Smart Stack a question grounded in each one's current docs.
| Attribute | Zod | Valibot |
|---|---|---|
| Category | Validation & Types | Validation & Types |
| Language | TypeScript | TypeScript |
| First released | 2020 | 2023 |
| License | MIT | MIT |
| Latest version | v3.24.0 | v1.0.0 |
| Pages indexed | 130 | 80 |
| Documentation | Zod docs → | Valibot docs → |
When to choose Zod
Choose Zod as the default validator when you want one schema to drive both runtime checks and TS types.
Explore Zod docs →When to choose Valibot
Choose Valibot when bundle size is critical and you want Zod-like ergonomics with tree-shaking.
Explore Valibot docs →$ smart-stack ask
Still deciding between Zod and Valibot?
Add both to your stack and ask Smart Stack. It pulls from each tool's official docs — ideal when you're weighing a choice or planning a migration.
>Should I use Zod or Valibot for my project?
Compare in Smart StackZod vs Valibot — FAQ
What is the difference between Zod and Valibot?
Zod — TypeScript-first schema validation with static type inference. Valibot — The modular and type-safe schema library. Both sit in the validation & types space; the right pick depends on your constraints, which the comparison above breaks down.
Is Zod better than Valibot?
Neither is universally "better." Choose Zod as the default validator when you want one schema to drive both runtime checks and TS types. Choose Valibot when bundle size is critical and you want Zod-like ergonomics with tree-shaking. Ask Smart Stack with both in your stack to get an answer grounded in their current docs.
Can Smart Stack answer questions about both Zod and Valibot?
Yes — add both to your stack and Smart Stack searches the official docs for each, which is especially useful when you're migrating from one to the other or weighing a decision.