ITKokka

JSON Visualizer

Paste JSON and see it as an interactive, explorable node graph, right in your browser.

Valid JSON

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How to Use

  1. 1

    Paste your JSON into the text box, or upload a .json file.

  2. 2

    Click "Visualize" to render it as a node graph.

  3. 3

    Pan and zoom the graph to explore nested objects and arrays.

  4. 4

    Use "Try example" to see a sample student record if you don't have JSON handy.

What Is JSON?

JSON (JavaScript Object Notation) is a text format for representing structured data using pairs of keys and values, objects, and arrays. It's the standard format for sending data between a web browser and a server, and it also shows up in config files and NoSQL databases. University IT and software engineering courses expect you to be comfortable reading nested JSON, since it's the shape most APIs return data in. Visualizing it as a graph makes it easier to see how objects and arrays are nested inside each other before you write code to work with it.

FAQ

What is JSON used for?

JSON (JavaScript Object Notation) is a lightweight text format for storing and exchanging data. It's used almost everywhere in university web and app development: API responses, config files, and databases like MongoDB all store data as JSON.

Why visualize JSON instead of just reading the text?

Deeply nested JSON gets hard to read as plain text once it has many levels of objects and arrays. A node graph shows each key, value, and nesting level visually, so you can see the structure of the data at a glance instead of counting braces.

Does my JSON get uploaded anywhere?

No. Parsing and rendering happen entirely in your browser. Nothing you paste or upload is sent to a server.

Is there a size limit?

The graph renders smoothly up to a few hundred nodes. Very large JSON files (over 800 nodes) will show a message asking you to visualize a smaller section instead, to keep the page responsive.

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Graph rendering powered by JSON Crack, used under the Apache License 2.0.