Free JSON & Data Tools
Clean up and convert structured data in seconds. Format and validate JSON, then convert between JSON, CSV, XML, YAML, and Excel without sending your data to a server. Ideal for developers, analysts, and anyone wrangling exports.
- JSON FormatterFormat, minify, and validate JSON with precise error locations.
- JSON BeautifierBeautify and explore JSON with adjustable indentation, key sorting, a collapsible tree view, and structure stats.
- JSON to CSVConvert JSON arrays of objects to CSV with configurable delimiters and nested field flattening.
- CSV to JSONConvert CSV spreadsheets to JSON arrays with header detection, type parsing, and dot-key unflattening.
- JSON to XMLConvert JSON to clean, indented XML with configurable root and item element names — entirely in your browser.
- XML to JSONConvert XML into clean JSON with attribute handling, type parsing, and adjustable indentation — all in your browser.
- JSON to YAMLConvert JSON into clean, readable YAML with adjustable indentation — entirely in your browser.
- YAML to JSONConvert YAML into clean JSON with type parsing and adjustable indentation — entirely in your browser.
- Excel to CSVConvert Excel spreadsheets (XLSX, XLS, ODS) to CSV in your browser, with per-sheet selection and delimiter options.
- CSV to ExcelConvert CSV data into a downloadable Excel workbook (XLSX, XLS, ODS) in your browser, with delimiter detection and number parsing.
Frequently asked questions
- Is my data sent to a server when I convert it?
- No. These tools parse and convert data in your browser, so sensitive data never leaves your device.
- Can these tools handle large files?
- Yes, within the limits of your device's memory. Multi-megabyte files generally work fine on a modern machine.