API Response Visualizer
Paste any JSON API response and instantly explore it three ways: a collapsible tree, a flattened table of object arrays, and per-item cards. Live search filters every view, and response stats tell you the size, depth and key count at a glance.
How to use
- 1
Paste your JSON
Drop a raw JSON response from any API into the input box, or click Load sample to try one.
- 2
Parse
Click Parse. The tool validates the JSON, shows size/depth/key-count stats, and enables the three views.
- 3
Switch views
Tree for a collapsible explorer, Table for the first array-of-objects flattened into rows, Cards for array items as grid cards.
- 4
Filter
Type in the filter box to highlight matching keys, values or paths across every view.
Common use cases
- Understand the shape of an unfamiliar API response before writing client code.
- Scan a long array of records as a table without writing a one-off script.
- Verify pagination metadata and per-item fields side by side.
- Find keys quickly with live filtering when the payload is large.
Limitations
- Inputs larger than 1 MB are rejected to keep the tab responsive.
- The table view shows the first array of objects found by depth-first search.
- Duplicate keys in an object (invalid JSON) keep their last value per the JS spec.
Frequently asked questions
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