Free Online JSON Tools
7 free browser-based json tools — no sign-up, no server uploads, all processing happens in your browser.
JSON Formatter & Validator
Format, validate, beautify, and minify JSON online. Pretty-print with 2-space, 4-space, or tab indentation. Download formatted output as .json.
JSON to CSV Converter
Convert JSON arrays to CSV and CSV back to JSON with nested object flattening and custom delimiters
JSON to YAML Converter
Convert between JSON and YAML formats instantly with bidirectional support
JSON Schema Validator
Validate JSON data against JSON Schema (Draft-07) with detailed error reporting and path navigation
JSONPath Tester
Test and evaluate JSONPath expressions with dot notation, wildcards, array slices, filters, and recursive descent
CSV to JSON Converter
Convert CSV and TSV data to JSON with type detection, nested key unflattening, and RFC 4180 parsing
JSON Tree Viewer
Parse and display JSON as a collapsible tree view with data type color coding, search, and path copying