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CoffeeScript

Free#14 of 28 in Code Transpilers

CoffeeScript: A concise alternative syntax for producing modern JavaScript, with CLI, REPL, and API access. Ranked #14 of 28 in Code Transpilers by our editors (7.7/10); pricing: Open source; best for coffeeScript users needing JavaScript output.

7.7/10Editor score
Visit CoffeeScript
CoffeeScript7.7 Visit CoffeeScript

At a glance

  • Editor score
    7.7 / 10
  • Pricing
    Open source
  • Best for
    CoffeeScript users needing JavaScript output
  • Paid from
    Free
  • Intermediate output
    Yes
  • Conversion mode
    Source-to-source
  • Facts checked
    22 Sep 2026
CoffeeScript screenshot

  • Where it wins

    • Compiles CoffeeScript into modern JavaScript, including ES2015+ output
    • Offers a CLI, interactive REPL, and Node.js compilation API
    • Supports source maps, AST output, literate files, and browser-side execution

  • Where it doesn't

    • Requires adopting CoffeeScript syntax rather than writing JavaScript directly
    • Its scope centers on CoffeeScript-to-JavaScript source conversion
    • Support channels are limited to community and documentation

Our verdict on CoffeeScript

CoffeeScript is a programming language and source-to-source compiler for developers who want an alternative syntax for JavaScript applications and scripts. It compiles CoffeeScript into modern JavaScript, with concise syntax and support for modules, classes, async functions, and JSX. Its CLI, interactive REPL, and Node.js API suit both command-line workflows and programmatic compilation, while browser-side compilation gives it another execution route.

Its feature set reaches beyond basic conversion: CoffeeScript can generate source maps and abstract syntax trees, and supports Literate CoffeeScript in Markdown-like .litcoffee files. Babel transpilation integration and compatibility with Gulp, Webpack, Grunt, and Broccoli offer ways to fit it into established JavaScript build workflows. That makes it more suitable for teams already maintaining CoffeeScript code or deliberately choosing its syntax than for developers seeking a general-purpose transpiler across languages.

CoffeeScript is open source under the MIT license, and its support channels are community and documentation. The published product details describe self-hosted and browser use, alongside API access; they do not position it as a managed hosted service. Choose it when CoffeeScript source and JavaScript output are the goal, especially if the CLI, REPL, source maps, or Node.js API matter to your workflow. If you want to write JavaScript directly or need a broader source-language conversion tool, another option may be a better fit.

Your product? Our editors can test CoffeeScript in depth and publish a review, labelled as paid · from $149/mo →

CoffeeScript pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.
See plans on coffeescript.org

CoffeeScript fact sheet

Free planNot verified
Paid fromFree
Source languagesNot verified
Target languagesNot verified
Syntax-version conversionYes
Intermediate outputYes
CLI accessYes
API accessYes
Conversion modeSource-to-source
DeploymentSelf-hosted, Browser extension
PlatformsWeb
SupportCommunity, Docs
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
Integrations5 integrations: Babel, Gulp, Webpack, Grunt, Broccoli
PricingOpen source
Websitecoffeescript.org
Facts checked22 Sep 2026

CoffeeScript integrations

CoffeeScript lists 5 integrations on its own site.

  • Babel
  • Gulp
  • Webpack
  • Grunt
  • Broccoli

Alternatives to CoffeeScript

See all CoffeeScript alternatives →

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Featured on iTechGuides

Featured on iTechGuides — CoffeeScript 7.7/10

CoffeeScript is listed in our Code Transpilers directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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