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Zod vs Valibot

Side-by-side compatibility, runtime support and editorial notes for Preact projects.

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UnverifiedActive
Zod

TypeScript-first schema validation often paired with Preact forms and loaders.

zod

Category
Forms
Compatibility
Unverified
Maintenance
Active
Runtime
TypeScriptSSRIslandsESM
Verified
Not yet verified
Tested with
Not documented
License
MIT
Bundle size
Not documented
Score
Directory score62/100
Compatibility7/35
Maintenance20/20
TypeScript10/10
SSR10/10
Islands10/10
ESM5/5
Verification0/10
View Zod profile
UnverifiedActive
Valibot

Lightweight schema validation library focused on small bundles and composable parsing.

valibot

Category
Forms
Compatibility
Unverified
Maintenance
Active
Runtime
TypeScriptSSRIslandsESM
Verified
Not yet verified
Tested with
Not documented
License
MIT
Bundle size
Not documented
Score
Directory score62/100
Compatibility7/35
Maintenance20/20
TypeScript10/10
SSR10/10
Islands10/10
ESM5/5
Verification0/10
View Valibot profile

At a glance

AttributeZodValibot
CompatibilityUnverifiedUnverified
MaintenanceActiveActive
TypeScriptNative TypeScriptNative TypeScript
SSRSSR supportedSSR supported
IslandsYesYes
Last verifiedNot yet verifiedNot yet verified
AI auditNot auditedNot audited