Change a configuration format
Move JSON configuration into YAML or serialize YAML as JSON.
JSON, YAML, and CSV Converter
JSON, YAML, and CSV Converter
Convert between JSON, YAML, and header-based CSV while seeing source-format syntax errors immediately.
Key features
- Chooses any JSON, YAML, or CSV source and target combination.
- Reads the first CSV row as headers, skips empty lines, and dynamically types numbers and booleans.
- Outputs two-space JSON and readable YAML without aliases.
- Can move a successful result back to input while swapping conversion direction.
How to use
- Choose the source and target formats.
- Paste data and inspect the automatic conversion.
- Copy the result or swap direction for another conversion.
Examples
Prepare table data for an API
Convert CSV rows into a JSON object array for API testing.
Privacy
Data parsing and serialization run in your browser.
Requirements
CSV output is intended for arrays of flat objects. Flatten nested objects or arrays first because they may serialize as [object Object].
Common questions
- Can a single JSON object be converted to CSV?
- Yes. A single top-level object is automatically wrapped as a one-row array for CSV output. Flatten nested object or array values first.
- Can I reverse the conversion direction quickly?
- Yes. Choose JSON, YAML, or CSV as source and target, then use the swap control to reverse them.
Related tools
- JSON Formatter and ValidatorFormat, minify, sort, and validate JSON with clear syntax error locations.
- JSON to TypeScript ConverterAnalyze a JSON object or array and generate nested TypeScript interfaces or type aliases.
- SQL Query FormatterFormat query indentation and keyword case for Standard SQL and major database dialects.
- Whitespace and Duplicate Line CleanerRemove unwanted whitespace and blank lines, deduplicate and sort lines, or change letter case in one pass.