Data & JSON

Format, validate and convert structured data: pretty-print or minify JSON, check it for syntax errors, convert between JSON, CSV, TSV and XML, parse query strings, and read Unix timestamps.

9 free data & json tools, no signup.

• CSV to JSON ConverterConvert CSV to JSON in your browser. Header row, quoted fields, custom delimiters, and optional number and boolean typing. Free and private.
• JSON FormatterFormat, beautify, and minify JSON online. Free, fast, and private, everything runs in your browser.
• JSON MinifierMinify JSON by removing whitespace, in your browser. Validates first, keeps strings and numbers exactly as written, and never uploads your data.
• JSON to CSV ConverterConvert a JSON array of objects to CSV online. Free, fast, and private, everything runs in your browser.
• JSON to XML ConverterConvert JSON to XML in your browser. Objects become nested elements, arrays repeat their tag, and text is safely escaped.
• JSON ValidatorCheck whether text is valid JSON and get a compact minified copy when it is. Strict RFC 8259 parsing, runs in your browser.
• Query String ParserParse a URL query string into decoded key and value pairs. Handles plus-as-space and percent-encoded characters.
• TSV to CSV ConverterConvert tab-separated values (TSV) to comma-separated values (CSV) with correct RFC 4180 quoting. Runs entirely in your browser.
• Unix Timestamp ConverterConvert Unix timestamps to UTC dates and back. Supports seconds and milliseconds. Free, instant, and private.