JSON Viewer

jsonviewer.tools

Software Development

Download for macOS

Add to Chrome

Converts JSON, YAML, and CSV into interactive, editable graphs and diagrams; includes themes and export options.

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JSON Viewer is for developers, analysts, and others who need to inspect or explain structured data. Enter or load JSON, YAML, XML, TOML, CSV, or TOON and view its structure as an interactive diagram, making nested objects and lists easier to navigate than in raw text. The editor also offers Mermaid diagrams for flowcharts and sequences. Select diagram nodes to inspect, change, or delete values, with edits reflected in the source content. You can customize graph colors and backgrounds and download visualizations. It’s useful for exploring data structures, reviewing configuration files, and turning tabular data into a visual representation. The site says data is processed on your device and isn’t stored or transmitted unless you choose to save it to the cloud.

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