vest

The premium Open Source alternative to Zod

🎯 Best for:Developers managing complex, multi-step, or asynchronous form validation logic.

What is vest?

A framework-agnostic alternative to Zod or Yup for complex validations. It uses a suite-based syntax inspired by unit testing to handle asynchronous validation logic outside of UI components.

Tech Stack
TypeScriptFrontend & Headless CMS

Why vest?

  • Framework agnostic
  • Excellent async handling
  • Highly readable test-like syntax

Limitations

  • Unique mental model
  • Smaller ecosystem than Zod
  • Manual state integration
3/4/2026
Last Update
89
Forks
11
Issues
MIT
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to vest instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Zod)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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