Data Formats
Format, convert, validate and compare JSON, YAML, XML and tabular data
JSON FormatterFormat, minify and validate JSONJSON / YAML / TOML ConverterConvert between JSON, YAML and TOML, with syntax errors reported by line and column. Everything runs locally in your browser.YAML FormatterFormat, validate and convert YAML to JSON, or JSON to YAML. A handy tool for developer config files.XML ToolsFormat XML or convert between XML and JSON while keeping attributes and nesting.JSON to CSVConvert between JSON arrays and CSV in both directions, with configurable delimiter and header.Excel Table to HTMLPaste an Excel selection to generate a clean HTML table locally, then preview, download or copy the source.JSON DiffCompare two JSON documents by field path — additions, removals and changes at a glance.JSON Schema ValidatorValidate JSON against a JSON Schema and list every error with its location and reason.JSONPath TesterQuery JSON with JSONPath expressions and see matched paths and values live.JSON to Type DefinitionsTurn a JSON sample into TypeScript interfaces, Zod schemas, Python dataclasses or Rust structs.