JSON Visualizer
Explore JSON data as an interactive tree or table
Raw JSON is great for machines and miserable for humans. Once an API response nests five levels deep, finding one field means scrolling through a wall of brackets. This visualizer turns any payload into an interactive tree or a flat, searchable table, with structural statistics on the side — all running locally in your browser, built for developers exploring unfamiliar APIs and analysts poking at data exports.
Why Visualize JSON?
JSON became the web’s default data format because it is simple: objects, arrays, strings, numbers, booleans, and null, nested however you like. That flexibility is also the problem — a real response might bury the value you want under data.results[3].attributes.meta, forcing you to match brackets by eye.
A tree view restores what raw text hides: hierarchy. Collapse the branches you do not care about and expand only the path to your target. A table view solves the opposite problem — when you know the shape but need to scan values across many records, flattened rows are far easier to search. The statistics panel rounds things out: max depth warns about deeply nested schemas, and the type distribution shows what the payload actually contains.
How to Use
- Paste JSON: Drop your data into the input area
- Pick a view: Switch between Tree and Table
- Explore: Expand nodes or scan flattened rows
- Check stats: Review depth, key count, and type distribution
Features
- Interactive, collapsible tree view
- Flattened table view for scanning and searching
- Structural statistics (depth, keys, types)
- Handles JSON up to a few megabytes
Use Cases
Exploring a third-party API? Paste a sample response and expand the tree to map the schema in seconds. Comparing two environments? Visualize each config and spot structural differences. Cleaning an export? The table view surfaces records carrying unexpected nulls or wrong types before they break your pipeline.
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Frequently Asked Questions
What is the difference between Tree View and Table View?
Tree View displays JSON as nested, expandable/collapsible nodes that preserve the original hierarchy. Table View flattens the JSON into keypath-to-value rows, making it ideal for searching, scanning, and exporting data.
What statistics does the tool provide?
The stats panel shows Max Depth (nesting levels), Key Count (total keys/indices), and Type Distribution (counts of strings, numbers, booleans, nulls, arrays, objects).
Can I visualize very large JSON files?
The tool works best with JSON up to a few megabytes. For very large datasets, use the Table View which is more compact, or visualize a representative sample. The tree view includes a scrollable container.
Is my JSON uploaded anywhere?
No. Parsing and rendering happen entirely in your browser — your data never leaves your device.