Data & Code
Format, validate, and convert JSON, CSV, and more.
JSON Formatter & Validator
Format, minify, and validate JSON with clear error messages.
CSV to JSON Converter
Convert CSV data to JSON, with or without a header row.
JSON to CSV Converter
Convert JSON arrays, objects, and API responses into spreadsheet-ready CSV. Flatten nested fields, choose how arrays are handled, preview the columns, and download the result — all in your browser.
YAML ↔ JSON Converter
Convert YAML to JSON or JSON to YAML, both ways.
XML Formatter
Pretty-print or minify XML with proper indentation.
CSV to Markdown Table
Convert CSV, TSV, or spreadsheet data into a clean Markdown table for GitHub, READMEs, pull requests, wikis, and documentation. Choose headers and alignment, then copy or download the result.
Regex Tester
Test regular expressions against sample text with live match highlighting.