JSON Graph Viewer
Visualize JSON as an interactive node graph — zoom, pan, and trace relationships across deeply nested structures, entirely in your browser.
What is a JSON Graph Viewer?
A JSON Graph Viewer turns raw JSON text into a node-and-edge diagram, the same visual language used for entity-relationship diagrams and dependency graphs. Instead of scanning nested braces and brackets, you follow arrows from parent to child.
It is most useful once a payload is too deeply nested for a flat text view to stay readable — API responses, GraphQL results, or configuration files with several levels of objects and arrays.
How the graph is built
Each object or array becomes a header node connected to a body node listing its key-value pairs; nested objects and arrays branch off as further header nodes. Primitive values inside an array render as individual leaf nodes.
Layout is computed automatically left-to-right using the Dagre algorithm, so nodes never overlap regardless of how irregular the JSON shape is. Zoom and pan with the mouse or trackpad to explore large payloads.
Common use cases
Backend developers trace how a deeply nested API response is actually structured before writing a parser. Frontend developers use it to understand an unfamiliar GraphQL or REST payload at a glance.
Because rendering happens entirely in your browser, it is safe to paste real API responses or config files containing internal field names — nothing is sent to a server.
Frequently asked questions
The layout is computed automatically by the Dagre algorithm, which lays every branch out left-to-right without overlap — but a wide or deeply nested payload still produces a large canvas. Zoom out to see the full shape, or narrow your input down to just the branch you care about before pasting it here.