JSON Visualizer

Turn large, deeply nested JSON into a collapsible, searchable tree so you can navigate structure without scrolling through thousands of lines. Expand and collapse branches, search for keys or values, and see the shape of the data at a glance — the view is virtualized so even multi-megabyte documents stay responsive.

Use it to inspect big API responses, explore an unfamiliar data export, or find a specific value buried deep in a config. All parsing happens locally in your browser; the data never leaves your machine.