JSON to JSDoc Converter - Generate JavaScript Documentation Online

Online JSON to JSDoc Converter: Document Your Data Structures

Improve your code's maintainability with our JSON to JSDoc converter. While TypeScript is popular, many developers still prefer pure JavaScript. JSDoc allows you to add type information to your JavaScript code using comments. Our tool takes your raw JSON data and automatically generates @typedef and @property blocks, giving you powerful IntelliSense and documentation without the overhead of a build step.

Why Convert JSON to JSDoc?

Documentation is often the first thing to be neglected in fast-paced development. Our tool makes it effortless to keep your data models documented.

Enhance IntelliSense in VS Code

By defining your JSON structures with JSDoc, modern IDEs like Visual Studio Code can provide accurate autocompletion and type checking for your JavaScript objects. This significantly reduces "undefined" errors during development.

Standardized Documentation

Using JSDoc is the industry standard for documenting JavaScript. It allows other developers (and your future self) to understand the shape of the data your functions expect or return, directly from the source code.

Key Features of Our JSON to JSDoc Tool

Our engine is designed to create clean, readable, and standard-compliant JSDoc blocks.

1. Automatic Type Identification

The converter intelligently maps JSON values to JSDoc types:

• "text" → {string}

• 123 → {number}

• true → {boolean}

• [] → {Array} or {Object[]}

• null → {*} (any)

2. Nested Object Support (@typedef)

For complex, nested JSON, the tool doesn't just create one giant block. It breaks down nested objects into separate @typedef definitions. This allows you to reuse these types throughout your project, keeping your documentation DRY (Don't Repeat Yourself).

3. Support for Arrays of Objects

If your JSON contains an array of items, the tool will analyze the object structure within the array and generate a specific type definition, allowing for deep autocompletion when iterating over lists.

How to Convert JSON to JSDoc

1. Paste your JSON: Insert your raw JSON object or API response into the input area.

2. Naming: (Optional) Give your main type a name (e.g., UserObject or ApiResponse).

3. Generate: The tool instantly produces the JSDoc comment blocks.

4. Copy and Document: Copy the generated comments and paste them above your variable declarations or function parameters in your .js files.

Technical Insights: JSDoc vs. TypeScript

The Best of Both Worlds

JSDoc is essentially "Type Safety via Comments." By using the @typedef blocks generated by this tool, you can use the @type {YourTypeName} tag later in your code. This gives you many of the benefits of TypeScript's type checking within a standard JavaScript file.

Clean Syntax

Our tool avoids unnecessary bloat. It produces a flat list of definitions that are easy to read and compatible with documentation generators like documentation.js or jsdoc.

Frequently Asked Questions (FAQ)

Is this tool compatible with all IDEs?

Yes, the generated JSDoc syntax is standard and is recognized by VS Code, WebStorm, Sublime Text (with plugins), and most modern editors that support JavaScript language features.

Can it handle very large JSON objects?

Absolutely. The tool is optimized to parse large objects and recursively extract types without any performance lag in your browser.

Is my data safe?

Yes. All processing is done locally in your browser. We never upload your JSON data to our servers, ensuring your API structures and sensitive data remains 100% private.