validating-string-formats
Using Zod v4 Features
Purpose
Comprehensive guide to new features introduced in Zod v4 that improve developer experience, performance, and type safety.
Top-Level String Format Functions
Overview
Zod v4 moved string format validations to top-level functions for 14x faster parsing.
All optimized formats:
z.email()- Email validationz.uuid()- UUID validationz.iso.datetime()- ISO datetimez.url()- URL validationz.ipv4()/z.ipv6()- IP addressesz.jwt()- JWT tokens
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