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JavaScript with syntax for types, offering better tooling and safety at any scale.

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Reviews onG2
64 reviews tracked

The Bottom Line

Entry price

Free, no paid tier

Biggest pro

Type safety for JavaScript

Biggest con

Learning curve

TL;DR - TypeScript

  • Adds static types to JavaScript for early error detection.
  • Improves developer tooling, code quality, and maintainability.
  • Compiles to standard JavaScript, running anywhere JavaScript does.
Pricing: Free forever
Best for: Individuals & startups
4.6/5 across review platforms

What is TypeScript?

Editorial review
TypeScript is a strongly typed programming language that builds upon JavaScript by adding optional static type definitions. This allows developers to catch errors early in the development process, directly within their editor, leading to more robust and maintainable codebases. It's designed for developers who want to enhance their JavaScript projects with improved tooling, better code organization, and increased reliability, especially in large-scale applications. TypeScript code compiles down to standard JavaScript, ensuring compatibility across all environments where JavaScript runs, including browsers, Node.js, Deno, and Bun. It offers features like interfaces, JSX support, and type inference, which provides powerful tooling without requiring extensive additional code. Developers can adopt TypeScript gradually into existing JavaScript projects, incrementally improving editor support and codebase quality.

Available on: Web

Pros & Cons

Pros

  • Type safety for JavaScript
  • Great IDE support
  • Industry standard
  • Large community
  • Microsoft backed

Cons

  • Learning curve
  • Build step required
  • Config complexity
  • Strict mode overwhelming
  • Breaking changes sometimes

Ratings Across the Web

4.6(64 reviews)

Ratings aggregated from independent review platforms. Learn more

Key Features

Static typingType inferenceIDE supportJavaScript supersetCompile-time checkingDeclaration files

Pricing Plans

Pricing checked May 27, 2026

Free

Free

Open source

  • Static typing
  • IDE support
  • JavaScript superset
  • Type inference
  • Apache 2.0 license

Reviews

4.6/5

Across 64 verified user reviews on G2

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TypeScript FAQ

What is TypeScript?

TypeScript is JavaScript with syntax for types, catching errors at compile time.

Is TypeScript free?

Yes, TypeScript is completely free and open source by Microsoft.

TypeScript vs JavaScript?

TypeScript adds types for better tooling and error checking. JavaScript is simpler.

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