Convert JSON to CSV with specific columns

Shiji Pan

1 year ago

Want to convert JSON to CSV with specific fields?

Try DataFileConverter, a JSON to CSV converter for Windows, MacOS, and Linux, Convert JSON to CSV with specific columns, Easy and Fast.

Can run in GUI mode, Step by Step, just a few mouse clicks.
Can run in Command line, for Scheduled Tasks and Streams.
Filter files locally and privately, avoid uploading JSON file(s) to online services.

Convert JSON to CSV with specific fields

“Start a New Convert” for “JSON to CSV”.

Select From “File” “JSON” To “File” “CSV”.

Support large JSON file ( > 4GB ).

Source JSON file’s content is like this:

After converting, you can view the output CSV file.

You can schedule and automate this “JSON to CSV” conversion task by:

Withdata DataFileConverter is a data file converter, it can convert JSON to CSV with specific fields. Download Withdata DataFileConverter

DataFileConverter works fast. It convert millions of rows within a minute.

Of course! DataFileConverter convert JSON to CSV with specific fields locally, absolutely safe.

Yes, you can. DataFileConverter has Linux, Mac OS, and Windows version.

Yes, you can. DataFileConverter can running in command line, on Linux, Mac OS, and Windows.

Value kind	in JSON	in CSV
Int	`1234 (number)`	`1234`
Decimal	`1234.56 (number)`	`1234.56`
Float	`1.234e10 (number)`	`1.234e+10`
Text	`"text" (string)`	`quoted only when it contains a comma or a quote`
Long text	`"multi-line\ntext" (escaped newline inside a string)`	`must be quoted; line breaks inside force multi-line records`
Date	`"2026-09-18" (string)`	`2026-09-18`
Datetime	`"2026-09-18T14:30:00Z" (string)`	`2026-09-18 14:30:00`
Binary	`"base64:..." (string)`	`not representable - base64 or hex string`
Boolean	`true / false (boolean)`	`TRUE / FALSE, or 1 / 0 depending on the writer`
JSON	`nested object or array, kept as structure`	`the whole JSON value quoted, with internal quotes doubled`

Both JSON and CSV are file formats, so what differs below is how each one chooses to represent a value.

Property	in JSON	in CSV
identifiers	`Double quotes; backslash escapes`	`Double quotes; a literal quote is doubled ("" )`
dates	`No date type: dates arrive as strings and the reader must p...`	`Conventional text: 2026-09-18 or 2026-09-18 14:30:00`
binary	`Not supported natively - base64 inside a string`	`Not supported`
separator	`Braces and commas`	`Comma ","`
encoding	`UTF-8 by definition`	`No declaration - UTF-8 works only with a BOM`
typing	`string, number, boolean, null, object, array - no date type`	`None - every field is text`
shape	`Nested objects and arrays`	`Flat table, optional header row`
ceiling	`Whole document is usually parsed into memory`	`No formal limit; row count bounded by memory`

For batch jobs, large files and scheduling use the Data File Converter converter — an offline desktop app for Windows, Linux and macOS. Free trial.