.NDJSON File Extension

Newline Delimited JSON File

Developer ndjson
Popularity
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What is an NDJSON file?

An NDJSON file is a text file that stores structured data in the Newline Delimited JSON (NDJSON) format. It contains a series of JSON values, typically objects, with each value written on a separate line. NDJSON is closely related to the .JSONL file type, which uses the same basic one-JSON-value-per-line structure.

More Information

NDJSON is designed for applications that need to process JSON data one record at a time, making NDJSON useful for streaming data and handling large collections of records. Developers commonly use NDJSON with UNIX-style text processing tools and shell pipelines, as well as for log files and passing data between applications or processes.

How to open an NDJSON file

You can open NDJSON files with any text editor since they are plain text files. Some options include:

You can also open an NDJSON file in the Google Chrome and Mozilla Firefox web browsers by dragging and dropping the file into your browser window.

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Programs that open NDJSON files

Windows
Included with OS
Mac
Included with OS
Linux
Free
Category: Web Files
Updated: September 10, 2026

Verified by FileInfo.com

The FileInfo.com team has independently researched the Newline Delimited JSON file format and Mac, Windows, and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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