JSON Tree Viewer

JSON Tree Viewer is an online tool that converts your raw JSON data into a clear, readable tree view structure, making it much easier to explore and understand complex data. JSON, which stands for JavaScript Object Notation, is a lightweight data format that organizes information in a hierarchical structure, with parent branches and nested sub-branches that can represent objects, arrays, and values.

This tool is especially useful when working with raw JSON objects or arrays, as it transforms them into a structured, visually organized format. You can expand or collapse each node to focus on specific parts of your data, making it easy to navigate through deeply nested structures. Additionally, you can mark all nodes or individual nodes, which helps highlight important sections and simplifies searching within large datasets.

To get started, simply paste your raw JSON data into the input area below, and the tool will generate an interactive tree view, allowing you to explore, analyze, and understand your data quickly and efficiently. Whether you’re a developer, data analyst, or just working with JSON files, this tool makes inspecting and managing JSON data straightforward and intuitive.

JSON data

JSON tree

Click a line to select it and see its path. Alt + click marks it, Shift + click copies its path, and the arrow keys move around the tree.

Your JSON is read in your browser and nothing is uploaded.

How to use it

The JSON Tree Viewer is an ideal tool to use when you need to view your JSON data in a structured tree like interface.

Add your JSONPaste your raw JSON data into the field above, or use Open file to load a .json file. The tree is built as you type, or click 'JSON Tree View'.
Explore the treeClick a line to open or close it and to see its path. Use Expand all and Collapse all to open or close everything at once.
Find and markType a name or value, or tick the value types you want, and click 'Find and mark'. Matches are highlighted and opened, and you can step through them.
Copy or saveOpen the Source tab to see the JSON laid out neatly and copy it, or click Download .json to save it. Copy path gives you the path of the selected line.

Good to know

Mark as you go

Hold Alt and click a line to mark or unmark it, or press M when it is selected. Unmark all clears every mark.

JSON paths

Select a line to see its path, such as $.store.books[0].title. Hold Shift and click to copy it.

Numbers stay exact

Large numbers are shown with every digit as written, and repeated keys are all listed, even though most programs would drop some of them.

Frequently asked questions

What is a JSON tree viewer?

It turns raw JSON text into a tree of objects, lists and values that you can open and close, so you can see how the data is organised without reading brackets and commas.

Why does it say my JSON is not valid?

A tree can only be built from JSON that follows the rules, so a mistake such as a missing comma or a key without quotes stops it. The message shows the line and column, and Go to line jumps there. For a full check, try our JSON Validator.

Can it open large files?

Yes. Lines are only drawn when you open them, and long lists show 500 items at a time, so big files stay quick. Documents up to about 3 million characters are accepted.

What does Find and mark do?

It highlights every line that matches your search and opens the tree so you can see them. You can search names, values or both, limit the search to certain value types, and step from one match to the next.

Is my JSON uploaded?

No. The tree is built in your browser and nothing is sent anywhere.

JSON Tree Viewer

JSON data

JSON tree

How to use it

Good to know

Frequently asked questions

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