Export Access table to JSON Lines (JSONL / NDJSON / LDJSON)

Want to export data from Access table to JSON lines (JSONL / NDJSON / LDJSON)?

Try Withdata DBToFile, Support Windows, Linux, and macOS, Export Access data to JSON lines (JSONL / NDJSON / LDJSON), 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.
• Support Windows, Linux, and macOS.

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JSON Lines text format (JSONL), also called Newline-delimited JSON (NDJSON), or Line-delimited JSON (LDJSON). JSON Lines files may be saved with the file extension .jsonl, *.ndjson, *.ldjson.

Export data from Access table to JSON lines (JSONL / NDJSON / LDJSON)

Login to Access -> Choose Access table -> Set JSON lines file options -> Export Access to JSON lines (JSONL / NDJSON / LDJSON)

Choose Access and logon.

“Export From Table” for “Access to JSON lines (JSONL / NDJSON / LDJSON)”.

Select JSON file type.

1. Choose Access table.

2. Set JSON lines (JSONL / NDJSON / LDJSON) file options.

3. Set rows options.

4. Export Access data to JSON lines (JSONL / NDJSON / LDJSON) table.

After exporting, you can view output JSON lines (JSONL / NDJSON / LDJSON) file.

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More tools for JSONL / NDJSON / LDJSON.

Access → JSON Lines reference

Type mapping

Value kind	in Access	in JSON Lines
Int	Long Integer	1234 (number)
Bigint	Long Integer	9007199254740993
Decimal	Decimal	1234.56 (number)
Float	Double	1.234e10 (number)
Text	Text(n)	"text" (string)
Long text	Long Text	"multi-line\ntext"
Date	Date/Time	"2026-09-18" (string)
Datetime	Date/Time	"2026-09-18T14:30:00Z" (string)
Binary	OLE Object	"base64:..." (string)
Boolean	Yes/No	true / false (boolean)
JSON	Long Text	nested object on the same line

Dialect differences

Access is a database server and JSON Lines is a file format, so the gap is wider than a dialect difference - the rows below are where values and structure stop lining up.

Property	in Access	in JSON Lines
port	(file-based)	—
identifiers	[square brackets]	Double quotes; backslash escapes (a newline inside a string...
row limit	SELECT TOP n	—
dates	Date/Time	No date type: dates arrive as strings
long text	MEMO	—
binary	OLE Object	Not supported natively - base64 inside a string
separator	—	Newline between records
encoding	—	UTF-8 by definition
typing	—	Same as JSON, but records cannot nest across lines
shape	Tables of rows and columns	Flat stream
ceiling	—	Streams, so it scales past what a single JSON document can ...

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