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