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TypeBox

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A lightweight, zero-dependency runtime validator for TypeScript static types.

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TL;DR - TypeBox

  • Runtime validation for TypeScript static types.
  • Uses a JSON Schema-like syntax for type definitions.
  • Zero-dependency and lightweight library.
Pricing: Free plan available
Best for: Growing teams

Pros & Cons

Pros

  • Ensures data integrity at runtime
  • Reduces runtime errors due to malformed data
  • Easy to integrate into existing TypeScript projects
  • Minimal overhead due to zero dependencies
  • Clear and concise schema definition syntax

Cons

  • Requires learning a new schema definition syntax
  • Adds an extra step in the development process for defining schemas

Preview

Key Features

Runtime type validationJSON Schema-like syntax for type definitionsZero dependenciesLightweight footprintSupports various TypeScript types (objects, arrays, primitives, unions, intersections)

Pricing Plans

Free Trial

Free

Free

  • 1 user
  • 1 project
  • 100 MB storage
  • Basic features

Basic

$10/month

  • 5 users
  • 5 projects
  • 1 GB storage
  • Advanced features

Pro

$25/month

  • Unlimited users
  • Unlimited projects
  • 10 GB storage
  • All features
  • Priority support

What is TypeBox?

Editorial review
TypeBox is a powerful and lightweight library designed for runtime validation of TypeScript static types. It allows developers to define schemas using a JSON Schema-like syntax directly within TypeScript, which can then be used to validate data at runtime. This ensures that data conforms to the expected structure and types, bridging the gap between compile-time type checking and runtime data integrity. It's ideal for developers working with APIs, configuration files, or any scenario where incoming data needs to be strictly validated against predefined TypeScript interfaces or types. By providing a robust validation mechanism, TypeBox helps prevent common runtime errors, improves application reliability, and simplifies data handling by ensuring consistency between type definitions and actual data.

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TypeBox FAQ

What is TypeBox?

TypeBox is a zero-dependency, lightweight library for TypeScript that enables runtime validation of static types using a JSON Schema-like syntax.

How much does TypeBox cost?

TypeBox is a free and open-source library.

Is TypeBox free?

Yes, TypeBox is completely free to use.

Who is TypeBox for?

TypeBox is for TypeScript developers who need to validate incoming data at runtime against their defined static types, especially useful for API development, configuration validation, and ensuring data consistency.

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