The modular and type safe schema library for validating structural data
Valibot is the modular and type safe schema library for validating structural data. Licensed under MIT, it is very popular in the JavaScript ecosystem with 6.6M weekly downloads.
Valibot has an excellent overall health score of 80/100. Its strongest dimension is popularity (100/100), while maintenance (60/100) is the area with most room for improvement. This package is well-maintained and actively used.
Zod v4, ArkType, TypeBox, and Valibot compared on performance, bundle size, TypeScript inference, and ecosystem in 2026. Benchmarks on real-world schemas.
2026-03-09T00:00:00.000ZZod v4 vs ArkType vs TypeBox vs Valibot compared for TypeScript schema validation in 2026. Performance, bundle size, API design, and which validation library to use.
2026-03-08T00:00:00.000ZZod v4 cut bundle size by 2x and added new APIs. Valibot challenged it with modular tree-shaking from day one. Here's which validation library to use in 2026.
2026-03-08T00:00:00.000Z