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AllScienceTools
AllScienceTools
Validate, prettify, and minify JSON data with strict syntax checking.
Paste valid JSON to start...
APIs send data as minified JSON strings. Our JSON Formatter turns that messy wall of text into a beautiful, indented tree structure.
You can't debug an API response if you can't read it. This tool validates the syntax and pretty-prints it, highlighting keys and values.
Validates JSON logic
Auto-indents with 2 or 4 spaces
Collapsible tree view
Error detection with line numbers
JSON (JavaScript Object Notation) won the format war against XML because it maps 1:1 to objects in almost every programming language.