JSONViewerTool icon
JSONViewerTool icon

JSONViewerTool

JSONViewerTool is a free, browser-based suite of JSON utilities designed for developers, testers, and anyone working with APIs or structured data.

JSON to CSV

Cost / License

  • Free
  • Proprietary

Application type

Platforms

  • Online
Json Viewer
JWT Decoder
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JSONViewerTool was added to AlternativeTo by Avinash Verma on and this page was last updated .

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What is JSONViewerTool?

JSONViewerTool is a free, browser-based suite of JSON utilities designed for developers, testers, and anyone working with APIs or structured data.

It allows users to instantly view, format, validate, minify, and compare JSON without uploading data to a server — all processing happens locally in the browser for better privacy and speed.

In addition to core JSON viewing and validation, JSONViewerTool includes built-in converters such as JSON to CSV, CSV to JSON, JSON to Excel, JSON to YAML, YAML to JSON, JSON to XML, and XML to JSON. It also provides useful developer utilities like a JWT Decoder, Base64 encoder/decoder, and UUID generator.

The tool features a clean, distraction-free interface with light and dark modes, side-by-side editors, tree view navigation, and copy/download options. No sign-up is required, making it ideal for quick debugging and daily development workflows.