How do I view large JSON files?

Paste or drop the file into the editor and open the Tree tab. Branches are collapsed lazily, so even multi-megabyte documents stay responsive.

Can I search inside the JSON?

Yes — the tree view has live search that matches keys and values and highlights results in place.

JSON Viewer & Tree Explorer

Collapse, expand and search deeply nested JSON without losing your place.

Indent

input.jsonpaste, drop a file, or load the sample

Loading editor…

The view appears once there is JSON to show.

Read nested JSON like a file explorer

The tree view turns any payload into collapsible, color-coded branches with type badges and item counts, so a 5-level-deep API response becomes navigable. Search filters the tree live and expands matching paths.

Switch to the Graph tab for a flowchart of the same data, or back to the editor to fix a value. Everything runs in your browser — your JSON never leaves your device, so it is safe for API keys, customer records, and production payloads.

Frequently asked questions

How do I view large JSON files?: Paste or drop the file into the editor and open the Tree tab. Branches are collapsed lazily, so even multi-megabyte documents stay responsive.
Can I search inside the JSON?: Yes — the tree view has live search that matches keys and values and highlights results in place.