Parse and explore JSON data in an interactive tree view
Parsed JSON tree will appear here...
Convert CSV data to JSON format with customizable options
Convert JSON arrays to CSV format with customizable delimiters
View and sort CSV files as an interactive table
Calculate mean, median, mode, standard deviation and more
Create bar, line, pie and doughnut charts from your data
JSON Viewer is a free online tool that parses JSON data and displays it in an interactive, collapsible tree view. Paste any JSON and explore its structure by expanding and collapsing nodes. Each value is color-coded by type — strings in green, numbers in blue, booleans in orange, null in gray, arrays in violet, and objects in cyan. The tool also shows statistics including the total number of keys, maximum nesting depth, and data size. This is an essential tool for developers working with APIs, debugging JSON responses, or exploring complex data structures. All processing happens in your browser.