JSON to CSV Converter

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CSV has no specification that everyone follows, so this one follows RFC 4180 and says where it departs from it. Records come out separated by a line feed rather than the carriage return and line feed pair the RFC asks for, because a browser text box rewrites that pair the moment the value is read back; input is read with either. A field is quoted only when it holds the delimiter, a quote or a line break, unless always-quote is turned on, which quotes every field instead. Going to CSV needs an array of objects, the only JSON shape that is a table, and a lone object is taken as a table of one row. A nested object or array has no CSV form at all, so its JSON text is written into the cell. Null becomes an empty field by default, which does mean a null and an empty string come out identical; it can instead be written as the literal text null or a custom marker you type in. Coming back from CSV, every field stays a string, because guessing types is what turns a postcode of 01234 into 1234 and a long identifier into a rounded number. The delimiter can be comma, semicolon, tab or pipe, chosen by hand or left on Auto, which guesses it from the first line and falls back to a comma if none of those show up. A UTF-8 byte order mark can be added to the CSV output for Excel, which otherwise misreads a UTF-8 file encoding; most other tools ignore it, so it stays off unless turned on. Formula injection protection is also off by default, because it changes the cell raw content: turned on, a value starting with an equals, plus, minus or at sign gets a leading quote so Excel or Google Sheets reads it as text instead of a formula.

Come usare

1. 1 Choose a direction, then paste your document into the left pane or load the sample.
2. 2 Set the delimiter, and say whether the first row holds the column names.
3. 3 Press Convert, then copy the result or download it as a file.