http://jsoneditoronline.org/

JSON Editor Online is a web-based tool to view, edit, and format JSON. It has various modes such as a tree editor, a code editor, and a plain text editor.

The editor can be used as a component in your own web application. The library can be loaded as CommonJS module, AMD module, or as a regular javascript file.

Supported browsers: Chrome, Firefox, Safari, Opera, Internet Explorer 9+.

The web application shows two panels side by side: a code editor on the left, and a tree editor on the right. Files and urls can be loaded via the main menu.

• Edit, add, move, remove, and duplicate fields and values.
• Change type of values.
• Sort arrays and objects.
• Colorized code.
• Search & highlight text in the treeview.
• Undo and redo all actions.

• Format and compact JSON.
• Colorized code (powered by Ace).
• Inspect JSON (powered by Ace).

• Format and compact JSON.

• Docs
• Examples
• Source
• History

with npm:

npm install jsoneditor

with bower:

bower install jsoneditor

download:

http://jsoneditoronline.org/downloads/

<!DOCTYPE HTML>
<html>
<head>
    <link rel="stylesheet" type="text/css" href="jsoneditor/jsoneditor-min.css">
    <script type="text/javascript" src="jsoneditor/jsoneditor-min.js"></script>
</head>
<body>
    <div id="jsoneditor" style="width: 400px; height: 400px;"></div>

    <script type="text/javascript" >
        // create the editor
        var container = document.getElementById("jsoneditor");
        var editor = new jsoneditor.JSONEditor(container);

        // set json
        var json = {
            "Array": [1, 2, 3],
            "Boolean": true,
            "Null": null,
            "Number": 123,
            "Object": {"a": "b", "c": "d"},
            "String": "Hello World"
        };
        editor.set(json);

        // get json
        var json = editor.get();
    </script>
</body>
</html>

The code of the JSON Editor is located in the folder jsoneditor. The code for the web application in app/web. To build the library from sourcecode, run

jake

in the root of the project. This will generate the files jsoneditor.js, jsoneditor.css, and minified versions, and will create a folder build containing the zipped library and the built web application.