JSON to Object
Paste any JSON object or array and instantly get ready-to-use accessor code snippets in JavaScript, Python, or PHP, with dot-notation and bracket-notation paths generated for every leaf value. You can set a custom variable name and control how deep the traversal goes, making it easy to scaffold data-access code for deeply nested API responses. Everything runs client-side, so your data never leaves the page.
JSON
Language
Variable Name
JavaScript
What is JSON to Object Accessor?
JSON keys are always quoted strings. JavaScript object literal keys do not have to be — and that distinction matters when you are pasting data into a source file, writing a webpack config, or converting a .json config file to a .js module. This tool converts a JSON document to a JavaScript object literal: string keys that are valid identifiers become unquoted, the structure is reformatted as a const or export default assignment, and the result is immediately pasteable into a .js or .ts file without a JSON.parse() wrapper. Enable TypeScript mode to generate a typed const with an inferred type annotation inline. Enable "Generate Accessors" to produce a list of dot-notation property chains for every leaf value in the structure — useful for quickly writing typed access expressions when you know the shape of the data but do not want to trace each path manually.
How to Use
- 1
Paste Your JSON
Paste the JSON object or array you want to convert to a JavaScript or TypeScript object literal. Both flat and deeply nested structures are supported.
- 2
Select Output Language and Style
Choose JavaScript or TypeScript output. For TypeScript, select whether to generate a const with an inferred type annotation or an explicit typed interface. Set variable name and export style (const, let, or export default).
- 3
Generate the Object Literal
Click "Convert". JSON string keys are converted to unquoted identifiers where valid, string values retain their quotes, numbers and booleans appear unquoted, and nested structures maintain proper JS object syntax.
- 4
Copy into Your Source File
Copy the generated object literal and paste it directly into a .js or .ts source file as a constant, config object, default export, or mock fixture.
Common Use Cases
JavaScript Object Literal Generation
Convert a JSON API response into a JavaScript object literal (without quotes around keys) for pasting directly into JS source files as a constant, config object, or mock data fixture.
Code Snippet Generation
Generate typed accessor code (property chains, destructuring patterns) from a JSON structure to bootstrap JavaScript or TypeScript code that reads specific fields from the object.
Config Object Scaffolding
Convert a JSON config file into a JavaScript or TypeScript object literal to migrate from JSON-based configuration to code-based configuration in frameworks like webpack, Vite, or ESLint.
Test Mock Data Creation
Transform JSON fixture data into JavaScript object literals for use in Jest, Vitest, or Mocha test files, where typed object literals are more ergonomic than JSON imports.
Conversion Examples
JSON → JavaScript Object Literal
String keys become unquoted identifiers; the structure is valid JS object syntax.
Input JSON
{
"id": 1,
"name": "Alice",
"roles": ["admin", "editor"],
"active": true
}Output CSV
const data = {
id: 1,
name: "Alice",
roles: ["admin", "editor"],
active: true
};JSON → TypeScript Typed Const
Generates a typed TypeScript const with an inferred type annotation.
Input JSON
{
"host": "localhost",
"port": 5432,
"ssl": false
}Output CSV
const config: { host: string; port: number; ssl: boolean } = {
host: "localhost",
port: 5432,
ssl: false,
};