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Programming Language Tools

JSON to JavaScript

Convert JSON into a JavaScript object/array literal, ready to paste directly into JS code as a const declaration.

Paste JSON below - this tool wraps it as a JavaScript const declaration you can paste directly into your code.

Since JSON is already valid JavaScript object/array syntax, this mostly just adds a variable declaration - the real value is a ready-to-paste, named constant.

What Does This Tool Do?

It takes your JSON and wraps it as a JavaScript const variable declaration - since valid JSON is already valid JavaScript object/array literal syntax, the main value is producing a ready-to-paste, properly named constant.

Why Use This Tool?

Useful for quickly turning an API response or config JSON into a mock data file or test fixture constant in a JavaScript/TypeScript project.

How to Use It

  1. Paste valid JSON.
  2. Enter a variable name for the constant.
  3. Copy the generated const declaration into your JS/TS file.

Limitations

This generates a plain JavaScript value - for a typed version (a TypeScript interface describing the shape), see the JSON to TypeScript tool.

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