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24 tools
Code & file formats
JSON, CSV, Base64, hashes and the other coding utilities.
Format & check JSONMake JSON readable and find formatting errors.
Minify JSONRemove extra spacing from JSON to reduce its size.
JSON to CSVTurn JSON into a table you can open in Excel.
CSV to JSONTurn a spreadsheet CSV file into JSON.
JSON ValidatorCheck whether JSON parses, and get the parser's own message and position when it does not.
JSON String EscapeEscape text so it can be pasted inside a JSON string literal.
JSON to XMLTurn JSON into indented XML, with arrays becoming repeated elements.
XML to JSONTurn XML into JSON. Attributes are kept and prefixed with an at sign.
CSV to Markdown TableTurn a CSV into a Markdown table with a header row and an alignment row.
CSV to TSVConvert comma separated values to tab separated, keeping quoted fields intact.
TSV to CSVConvert tab separated values to CSV, quoting any field that needs it.
CSV to SQL InsertTurn a CSV into INSERT statements, using the header row for the column names.
XML FormatterIndent XML properly and tell you where it is broken if it will not parse.
SQL FormatterBreak a one-line query onto its clauses so you can actually read it.
List ConverterChange a list between lines, commas, semicolons, tabs and pipes, with quoting.
YAML to JSONTurn a YAML config into JSON, with the line and column named if it will not parse.
JSON to YAMLRewrite JSON as YAML, which is the same data with far fewer brackets.
YAML to TOMLMove a config from YAML to TOML, the format Rust and Python packaging use.
TOML to YAMLTurn a TOML config into YAML for a tool that wants it that way round.
TOML to JSONRead a TOML file as JSON, so you can see exactly how it parsed.
JSON to TOMLWrite JSON out as TOML, with a clear reason when the shape will not fit.
YAML ValidatorCheck YAML parses, and see what it actually parsed to before you trust it.
YAML FormatterRe-indent YAML consistently and normalise the quoting throughout.
CSV to YAMLTurn a spreadsheet export into a YAML list, one entry per row.
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Good to know
How do I make JSON readable?
Paste valid JSON and choose the indentation. The formatted result updates beside your input.
Will formatting repair invalid JSON?
No. Fix the syntax error shown below the input first, such as a missing quote, comma or bracket.
Does formatting preserve every original detail?
It parses and writes the JSON again. Duplicate object keys and numbers beyond JavaScript’s safe precision may change, so keep the original when those details matter.