class-transformer-validator
A simple wrapper around class-transformer and class-validator for TypeScript.
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Verified · Jul 12, 2026Overview
What is class-transformer-validator?
Class-Transformer-Validator provides a programmer-friendly API by wrapping class-transformer and class-validator, making it easier to handle data transformation and validation in TypeScript applications.
Key differentiator
“Class-Transformer-Validator simplifies the process of integrating data transformation and validation in TypeScript applications by providing a unified API that wraps around two popular libraries.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
The tool heavily relies on TypeScript-specific features and patterns, which might be unfamiliar to developers from other languages.
While it integrates well with class-transformer and class-validator, support for other popular data transformation or validation libraries is limited.
The use of decorators and runtime type checking can introduce performance overhead in large-scale applications.
Fit analysis
Who is it for?
✓ Best for
TypeScript developers who need to validate and transform incoming data into class instances
Projects that require seamless integration between data transformation and validation processes
✕ Not a fit for
Applications not using TypeScript or needing more complex validation logic beyond what class-validator offers
Scenarios where a standalone, non-TypeScript solution is preferred
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Alternatives
Works well with
Integrations
Next step
Get Started with class-transformer-validator
Step-by-step setup guide with code examples and common gotchas.