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JSON to CSV Converter.

Convert json to csv locally. Safe UTF-8 JSON to CSV for simple structured records, with download and no upload.

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Convert your file

INPUTJSON
OUTPUTCSV
Files stay on your device

Up to 10 MiB of UTF-8 text · Local conversion

Choose a compatible source file to begin.
Private processingYour source file stays in your browser
Original stays intactDownload a new output file
Real formatsUnsupported conversions show an error

STEP BY STEP

How to convert JSON to CSV

  1. Choose a source file. Select a real JSON file from your device.
  2. Run the local converter. The converter checks the input and processes it locally using the appropriate browser engine.
  3. Download the result. Save the generated CSV file. Your original file is unchanged.

FORMAT GUIDE

Why convert JSON to CSV?

CSV stores tabular rows in comma-delimited text; quoted fields can include commas, quotes and newlines.

  • Exchanging tabular records between tools with different import formats.
  • Preparing a readable export for a lightweight data workflow.
  • Reviewing converted data before importing it into another application.

UNDERSTAND YOUR FILES

JSON vs. CSV: what changes?

Input · JSON

Structured text for arrays and objects. This hub handles flat table-shaped collections rather than arbitrary nested schemas.

Output · CSV

Comma-separated tabular text; quotation marks may enclose commas and line breaks within fields.

CSV stores tabular rows in comma-delimited text; quoted fields can include commas, quotes and newlines. Choosing an output format changes how another app reads the file; it does not restore detail missing from your source.

Before you share the output

Check column headings, escaped characters, delimiters and empty values. Data type information and spreadsheet formulas may not survive a plain-text format change.

Your files and privacy

Your selected file is converted on your device. You can download the new file while keeping the original unchanged.

Some formats work differently across browsers and devices. Check the converted result before using it for important work. Advertising and other optional website services may have separate privacy practices.

Format compatibility and limitations

JSON input must be an array of objects or an array of arrays; nested values are stringified and irregular object keys become columns. Spreadsheet styling, formulas and typed cell metadata are not preserved. Review untrusted formula-like cells before opening exports in spreadsheet software.

Actual output behavior depends on the input file, your browser, device resources and the converter engine. Check important files before sharing or replacing them.

HELP & ANSWERS

JSON to CSV questions

Are my data files uploaded?

No. Source parsing and output generation run locally in the browser.

Does the tool change data types?

Values from CSV or TSV are treated as text. JSON values converted to a table can be stringified.

What file structure works best?

JSON input must be an array of objects or an array of arrays; nested values are stringified and irregular object keys become columns. Spreadsheet styling, formulas and typed cell metadata are not preserved. Review untrusted formula-like cells before opening exports in spreadsheet software.