JSON Viewer — Explore JSON Data with a Tree View
Visualize JSON data as an interactive, collapsible tree. Expand and collapse nodes, search for keys, and navigate complex nested structures with ease.
Navigating Large JSON Payloads
API responses from services like Elasticsearch, GraphQL, or cloud provider SDKs can contain thousands of nested fields. A flat text view makes it nearly impossible to understand the hierarchy. The JSON viewer solves this by presenting data as an expandable tree where you open only the branches you care about.
JSON Viewer vs. JSON Formatter
A formatter outputs indented plain text that you can copy and paste. A viewer goes further by rendering an interactive UI with expand/collapse controls, inline type badges (string, number, boolean, null), and element counts for arrays and objects. Use the formatter when you need text output; use the viewer when you need to explore and understand structure.
Frequently Asked Questions
Yes. Use the search bar above the tree to filter by key name or value. Matching nodes are highlighted and non-matching branches are dimmed so you can focus on the data you need.
The viewer supports nesting up to 100 levels deep. Each level can be individually expanded or collapsed, and you can use the Expand All / Collapse All controls for quick navigation.
Click any node to select it, then press the copy button to copy that subtree as valid JSON to your clipboard. This is useful when you only need a portion of a large response.