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TypeScript

A strongly typed programming language built on top of JavaScript

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TypeScript is a programming language that extends JavaScript with type syntax, reporting errors in the editor before code runs. It compiles to JavaScript, so output runs wherever JavaScript runs, including browsers, Node.js, Deno, and Bun. Projects can adopt it incrementally, applying types to existing JavaScript through JSDoc and `@ts-check` before moving to TypeScript files.

TypeScript uses type inference to provide editor tooling without extra code. It supports interfaces, type aliases, and union types for describing data shapes, along with editor features such as auto-complete and JSX. The language can be tried in the browser via the Playground or installed through npm. Documentation is available in the Handbook, and TypeScript 7.0 is the current release.

12 alternatives to TypeScript

Ranked by how well each tool replaces TypeScript: shared features, audience, price and popularity.

  1. JetBrains

    Essential tools for software developers and teams

    Covers 1 of 1 key features and has a free plan.

    Free plan
    57 out of 100 matchContact sales

  2. Flow

    A typed dialect of JavaScript with a static type system

    Covers 0 of 1 key features.

    54 out of 100 match—

  3. Cursor

    Cursor is your coding agent for building ambitious software.

    Covers 1 of 1 key features and has a free plan.

    Free plan
    51 out of 100 match$20/mo

  4. CoffeeScript

    A little language that compiles into JavaScript

    Covers 0 of 1 key features and is open source.

    Open source
    51 out of 100 match—

  5. Devin Desktop

    Manage fleets of local and cloud agents from one surface. Plan, delegate, review, and ship

    Covers 1 of 1 key features and has a free plan.

    Free plan
    49 out of 100 match$20/mo

  6. Claude

    AI assistant built by Anthropic for chat, code, documents and connected work.

    Covers 1 of 1 key features and has a free plan.

    Free plan
    47 out of 100 match$17/mo

  7. Codewich

    Live Updating TypeScript/ES6/JavaScript Playground

    Covers 0 of 1 key features.

    47 out of 100 match—

  8. Scratch

    Imagine, program, share.

    Covers 1 of 1 key features and has a free plan.

    Free plan
    44 out of 100 matchFree

  9. Node.js

    Run JavaScript Everywhere

    Covers 1 of 1 key features and is open source.

    Open source
    43 out of 100 match—

  10. Apache Tomcat

    Open source servlet container implementing Jakarta Servlet, Jakarta Pages, Jakarta Express

    Covers 1 of 1 key features, has a free plan and is open source.

    Free planOpen source
    40 out of 100 matchFree

  11. Jekyll

    Transform your plain text into static websites and blogs

    Covers 1 of 1 key features, has a free plan and is open source.

    Free planOpen source
    39 out of 100 matchFree

  12. NativeScript

    Write Native with TypeScript

    Covers 0 of 1 key features.

    39 out of 100 match—