Which MIME types are related to file extension ".jsonl"?

The .jsonl file extension is associated with 2 MIME types:

application/json, application/jsonl.

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

About .jsonl Files

JSONL files are text files that store data in a JSON Lines format. Each line is a complete JSON object.
They use MIME types such as application/json for standard JSON and application/jsonl for JSON Lines.
This format is ideal for processing large datasets one record at a time.

Files with this extension can be opened or edited by text editors such as VS Code, Sublime Text, and Notepad++.
Software libraries in many programming languages readily parse and manipulate these files.
According to FilExt.com, more details are available on the FilExt.com page for JSONL files.

Relationship between file extension and MIME type

A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.

File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.

File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.

Associated MIME types

application/json, application/jsonl

FAQs

What is a JSONL file used for?

A .jsonl file stores data in JSON Lines format, where every line in the file is a separate, valid JSON object. This format is widely used for storing structured logs and processing large datasets efficiently without loading the entire file into memory.

How do I open a .jsonl file on Windows or Mac?

Since .jsonl files are plain text, you can open and edit them with any code editor or text viewer. Popular, lightweight choices include Microsoft Visual Studio Code, Sublime Text, and Notepad++.

What is the difference between .json and .jsonl?

A standard .json file contains a single data structure (usually a large array or object) spanning the whole file, whereas a .jsonl file contains one independent JSON object per line. This makes .jsonl files easier to process line-by-line in streaming applications.

Can Microsoft Excel open JSONL files?

Excel does not natively open .jsonl files by double-clicking. To view the data in a spreadsheet, you must use Excel's Get Data (Power Query) feature to import the file as JSON or convert the data to CSV format first.

What MIME type should be used for serving JSONL files?

The specific MIME type is typically application/jsonl or sometimes application/x-ndjson. However, because the content is text-based, it shares characteristics with standard JSON; see application/json on mime-type.com for related configuration details.

How can I convert a JSONL file to standard JSON?

To convert manually, add a comma to the end of every line (except the last), wrap the entire content in square brackets [], and save it as a .json file. Command-line tools like jq are often used to automate this conversion.

How do I parse a JSONL file in Python?

You can parse .jsonl files using Python's built-in json library by reading the file line by line. A common approach is to iterate through the file object and apply json.loads(line) to each individual line string.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why can one extension have multiple MIME types?

Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.