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

Paste JSON in the Editor tab (or load the sample) to see it here.

paste JSON, drop a file, or load the sample

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.