JSON Editor Formatter - Free Online Tool

JSON Editor Formatter

Usage Instructions: Copy JSON text content into the editor for editing, formatting, compressing, folding, sorting, searching, escaping, unescaping, copying, and more. Supports full-screen mode. Generate shareable links with content that others can open, ideal for collaborative scenarios. Text content is preserved within the session, so refreshing the page won't result in loss. Features JSONPath, JSON convert to Golang, JSON convert to CSV, and more below.


JSONPath Description
$ the root object/element
@ the current object/element
. or [] child operator
.. recursive descent. JSONPath borrows this syntax from E4X.
* wildcard. All objects/elements regardless their names.
[] subscript operator. XPath uses it to iterate over element collections and for predicates. In Javascript and JSON it is the native array operator.
[,] Union operator in XPath results in a combination of node sets. JSONPath allows alternate names or array indices as a set.
[start:end:step] array slice operator borrowed from ES4.
?() applies a filter (script) expression.
() script expression, using the underlying script engine.
See: JSONPath expressions - https://goessner.net/

JSON Convert


What is JSON?

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language Standard ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language.

JSON is built on two structures:

A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.
An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence.
These are universal data structures. Virtually all modern programming languages support them in one form or another. It makes sense that a data format that is interchangeable with programming languages also be based on these structures.

Use Cases

  1. Data Interchange Format:

    JSON is widely used as a lightweight data interchange format. It is easy for both humans to read and write and machines to parse and generate. Many web APIs, as well as configuration files, use JSON for data exchange.

  2. Web Development:

    In web development, JSON is commonly used to transmit data between the server and the web browser. It is often used in AJAX requests to send and receive data asynchronously without requiring a page refresh.

  3. Configuration Files:

    JSON is used for configuration files due to its simplicity and readability. Many applications, including web frameworks and server applications, use JSON files to store configuration settings.

  4. NoSQL Databases:

    Some NoSQL databases, such as MongoDB, use JSON-like documents as their data format. JSON's flexible and nested structure is well-suited for representing complex data in a hierarchical format.

  5. Logging:

    JSON is often used in logging to structure and store log data in a standardized format. This makes it easier to search, analyze, and visualize log information.

  6. Front-end Data Rendering:

    In front-end development, JSON is commonly used to store and transmit data that is dynamically rendered in user interfaces. Frameworks like React, Angular, and Vue.js often work with JSON data to update the UI.

  7. Configuration for Build Tools:

    Many build tools and task runners use JSON for configuration. It allows developers to specify various build tasks and settings in a structured and readable format.

  8. Mobile App Development:

    JSON is used in mobile app development for data exchange between the mobile app and server. Mobile applications often communicate with server APIs to fetch and update data using JSON.

  9. Settings and Preferences:

    JSON is used to store user settings and preferences in applications. It provides a structured way to save and retrieve various user-specific configurations.

  10. Testing and Mock Data:

    JSON is commonly used in testing scenarios to provide mock data for APIs or simulate data responses. This is helpful during the development and testing phases of a project.


RFC: The JavaScript Object Notation (JSON) Data Interchange Format
JSON Website: https://www.json.org/json-en.html
JSON Convert:https://app.quicktype.io/