JSON to CSV Converter guide
Convert a non-empty JSON array of objects into comma-, semicolon-, or tab-delimited text and download the result.
What this tool does
JSON to CSV parses the supplied JSON, verifies that the root is a non-empty array, and requires every array item to be an object. It builds an ordered union of field names across all rows, so a field introduced by a later object still becomes a column. Missing and null values produce empty cells.
Strings, numbers, and booleans are converted to text. Nested objects and arrays are serialized as compact JSON inside one cell rather than expanded into additional columns. Cells containing the selected delimiter, a quotation mark, or a line break are enclosed in double quotes, and embedded quotation marks are doubled according to common CSV conventions.
You can include a header row and choose comma, semicolon, or tab. The output uses CRLF row endings for broad spreadsheet compatibility and can be copied or downloaded as a UTF-8 CSV file.
How to use it
- Paste a valid JSON array of objects.
- Choose the delimiter expected by the destination application.
- Keep the header row enabled unless the importer supplies columns separately.
- Select Convert JSON to CSV.
- Inspect the preview, then copy or download the file.
Open the result in the actual spreadsheet, database importer, or analysis tool before deleting the JSON source. Importers vary in delimiter detection, encoding, decimal separators, and formula handling.
Benefits
- Builds columns from fields across every object
- Quotes delimiters, quotation marks, and line breaks safely
- Supports comma, semicolon, and tab output
- Preserves nested values as JSON text
- Converts entirely inside the browser
Data-shape and spreadsheet safety
CSV has no native data types or nested structure. Values such as 0012, long identifiers, dates, and large numbers may be automatically reformatted by spreadsheet software. Configure import column types when leading zeros and exact text must be preserved.
Some spreadsheet programs interpret cells beginning with =, +, -, or @ as formulas. This converter preserves source text and does not neutralize formula-like values because doing so would change data. Review untrusted exports before opening them in a spreadsheet or applying automated workflows.
Security notice: Treat CSV derived from untrusted JSON as untrusted data. Use safe import settings and review formula-like cells before opening or sharing the file.