React JSON Visualizer

React JSON Visualizer is a lightweight JSON visualizer and JSON viewer dev tool that helps developers understand complex JavaScript objects and arrays through an interactive node-based UI.

It is designed to be DX-friendly, UI/UX focused, and simple to use. You import one function, pass your data, and instantly see the JSON data flow.

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What is React JSON Visualizer?

-Works with React, Next.js, Vanilla JS, and any browser environment

React JSON Visualizer turns any JavaScript object or array into a visual data graph. -Each object becomes a node -Nested objects and arrays are connected visually -Primitive values stay inside nodes -Users can drag, collapse, and explore data relationships -This makes it ideal as a developer tool, debugging utility, or internal JSON inspector.

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Features

React JSON Visualizer with connected nodes Interactive JSON viewer Drag and pan the canvas Collapse and expand nodes Auto layout (no manual positioning) Clean UI / UX focused design Zero configuration Works with Vanilla JS, React.js, Next.js No external dependencies

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Installation

npm install react-json-visualizer

or

pnpm add react-json-visualizer

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Usage

You only need one function.

import { renderJSON } from "react-json-visualizer";

renderJSON(data);

That’s it. No setup, no config, no framework lock.

Interactive UI:

After running this code, a button/icon will appear at the top-right corner of the page. Click it to launch the JSON Visualizer, and you can start exploring your data interactively.

JavaScript Example

  import { renderJSON } from "json-visualizer";

  const data = {
    product: {
      id: 10,
      title: "Laptop",
      specs: {
        ram: "16GB",
        cpu: "M1"
      }
    }
  };

  renderJSON(data);

React.js Example

import { useEffect } from "react";
import { renderJSON } from "json-visualizer";

export default function App() {
  useEffect(() => {
    renderJSON({
      user: {
        name: "John",
        role: "Admin"
      }
    });
  }, []);

  return null;
}

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Important: This is a client-side dev tool. It must run in the browser.

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API

renderJSON(data)

Parameter	Type	Description
data	Object or Array	Any valid JavaScript JSON-like data structure.

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Automatically injects required styles Clears previous visualization Handles deep nested structures Updates layout dynamically Use Cases Debugging API responses Inspecting backend JSON data Understanding deeply nested objects Internal admin dashboards Developer tools and inspectors Teaching JSON and data structures UI/UX exploration of data flow Framework Support This tool is framework-agnostic.

Vanilla JavaScript React.js Next.js Vue Svelte Any browser environment

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License :

MIT License © Ratnesh Kumawat

Author

Ratnesh Kumawat Portfolio: https://ratneshkumawat.vercel.app

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React JSON Visualizer is built to be simple, visual, and developer-friendly. If you work with JSON every day, this tool helps you see your data, not just read it.

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Keywords

json visualizer json visualizer json viewer json inspector developer tools dev tool frontend tools ui ux dx friendly data visualization javascript json