JSON to CSV Converter

JSON TO CSV CONVERTER

What is JSON to CSV conversion?

JSON is a flexible format built from objects, arrays, and nested values. CSV is a flat table of rows and columns. Converting JSON to CSV makes API exports and application data easy to inspect in Excel, Google Sheets, Numbers, reporting tools, and ordinary spreadsheets.

This JSON to CSV Converter works locally in your browser. It detects an object or array, creates a stable column schema, optionally flattens nested objects, and generates correctly escaped CSV text. It does not create an .xlsx workbook or call a spreadsheet API.

HOW TO CONVERT JSON TO CSV

How to convert JSON to CSV online

1. Paste JSON or choose a JSON file.
2. Validate the input and read any nearby line and column error.
3. Select the array to convert if several arrays are detected.
4. Choose nested-object and array handling options.
5. Review the preview, then download or copy the CSV.

The preview shows the first 100 rows so large datasets do not overwhelm the page.

JSON ARRAY TO CSV

How to convert a JSON array to CSV

An array of objects is the most common use case. Fields are combined in first-appearance order. If one record has age and another has email, both columns remain and the missing cell is blank. Values containing commas, quotes, line breaks, or Unicode are escaped for spreadsheet compatibility.

[{"name":"John","age":28},{"name":"Mary","email":"mary@example.com"}]

When a response includes more than one array, each detected path is shown with its item count. Selecting users instead of orders makes the conversion explicit and prevents an accidental export of the wrong dataset. Arrays of objects remain in one cell as JSON; they are not expanded into extra relational rows.

NESTED JSON TO CSV

How to flatten nested JSON to CSV

Enable Flatten nested objects to turn profile.city and profile.country into readable columns. Dot notation preserves each value's origin. Turn it off when you prefer the complete nested object as a JSON string in one cell.

Flattening is especially useful for customer exports and analytics payloads where important values are several levels deep. The column name shows the path rather than forcing you to guess which name or id field was selected. If two branches contain the same leaf key, their full paths remain separate and no data is silently overwritten.

MISSING FIELDS

What happens when JSON objects have different fields?

The converter builds one stable schema from every selected object. Missing fields remain blank rather than being dropped or assigned invented values. A later object can introduce a new column without changing the order of earlier columns.

SPREADSHEET WORKFLOWS

Use JSON to CSV with Excel and Google Sheets

Download the generated CSV, open it in Microsoft Excel, import it into Google Sheets, or use Apple Numbers. UTF-8 BOM is enabled by default for improved Unicode compatibility. Semicolon and tab-separated output are available for regional and TSV workflows. The output remains CSV text, not an Excel workbook.

When importing into a spreadsheet, check the delimiter and encoding choices offered by the application. A semicolon-separated file can be useful in locales that use a comma as the decimal mark, while tab-separated output is convenient for copy-and-paste workflows. Dates, currency symbols, and leading zeroes are interpreted by the spreadsheet you choose, so verify those columns before saving a new workbook.

TROUBLESHOOTING

Common JSON parsing errors

Missing commas, unclosed quotes, extra brackets, trailing commas, comments, and unquoted property names are common causes of failure. The validator reports a nearby line and column when the browser exposes a character position. It does not use AI to rewrite your source.

For very large files, browser memory may be the limiting factor. A local script is a better choice when the browser cannot process the dataset reliably.

PRIVATE LOCAL PROCESSING

Convert JSON to CSV without uploading your data

JSON exports can contain customer records, internal IDs, or product data. This converter reads pasted text and selected files locally and does not send JSON to an API, URL, analytics event, or server log. No account or API key is required, and use is free and unlimited.

For repeatable scheduled transformations, a local script or EasyClaw workflow may be a better fit; for one-off conversions, this page keeps the process visible and auditable.

Online converter or local script?

An online JSON to CSV converter is convenient when you need a quick, visual result without installing a runtime. It is useful for checking a vendor export, preparing a one-time spreadsheet, or explaining a data shape to a teammate. A local script is preferable for recurring jobs, version-controlled transformations, very large files, or pipelines that must run unattended. The two approaches are complementary: use the browser tool to understand the shape and confirm the columns, then move a repeatable process into code or an EasyClaw desktop workflow.

FAQ

Frequently asked questions about JSON to CSV conversion