View My JSON — Free Online JSON Viewer, Editor & Formatter

The interactive editor loads with JavaScript. You can read the guide below without it.

A practical guide to viewing and editing JSON

View My JSON is a browser-based workspace for reading, formatting, validating, comparing, and exploring JSON (JavaScript Object Notation). JSON is a text format commonly used to exchange settings and data between applications and APIs. Its nested braces and brackets can be difficult to scan in a single line, so the viewer presents valid data in a readable editor and visual layouts such as cards, tables, and a tree. Core editing and viewing happen in your browser; you do not need an account to try them.

How to use the JSON viewer

  1. Open the app and paste JSON into the editor, or use the editor’s file-open control.
  2. Choose Format to indent the document, or Validate to check whether its syntax is valid.
  3. Explore the result in Cards, Table, Tree, Charts, or another view suited to the data.
  4. Edit a value in the editor or supported visual view, then review the updated document.
  5. To inspect changes between documents, open Compare and provide the two JSON inputs.

For example, a compact response such as {"name":"Mira","role":"designer","active":true,"skills":["research","prototyping"]} can be formatted to make each field easier to inspect. A table view is useful when the document contains a list of similar objects; a tree is useful when you need to follow nested values. Choose the view that answers your question rather than changing the data’s structure just to make it easier to read.

{
  "name": "Mira",
  "role": "designer",
  "active": true,
  "skills": ["research", "prototyping"]
}

Common JSON errors and how to fix them

JSON syntax is strict. A missing comma between properties or array items is a frequent cause of a parse error; add the comma after each item except the last one. Property names and text values need double quotes, so replace single quotes with double quotes. JSON does not allow comments, trailing commas, undefined values, or unquoted property names. For example, {"name": "Mira",} is invalid because of the comma before the closing brace. Remove it, then validate again. If an error points to a later line than the actual mistake, check the line just above it: a missing quote or bracket can shift where parsing fails.

JSON types also matter when interpreting results. Strings use quotes, numbers do not, booleans are the lowercase values true and false, and an empty value is written as null. Arrays use square brackets and objects use curly braces. A formatter can improve whitespace, but it cannot decide whether a value has the right meaning for your application; compare the data with the API or schema that produced it.

Frequently asked questions

Is my JSON uploaded when I edit it?

Normal paste, edit, format, and view workflows run in the browser and do not upload your JSON to View My JSON servers. Avoid putting secrets into any online tool unless you have reviewed its data-handling practices and are comfortable doing so.

Can I use the viewer without creating an account?

Yes. Core viewing, editing, formatting, and validation features are available without an account. Some advanced features may have separate availability or plan requirements.

Why does my JSON fail validation?

Check the reported location and the line immediately before it for missing commas, quotes, or closing brackets. Also remove comments, trailing commas, and single-quoted strings; those are not part of standard JSON.

Can I turn a JSON array into a table?

Yes. Select the Table view. Arrays of objects with similar fields are especially suitable because each object can be read as a row and its properties as columns.

How do I compare two JSON documents?

Open Compare and enter the original document on one side and the revised document on the other. The comparison view helps you locate differences without manually scanning both files.

Who maintains View My JSON and how can I get help?

View My JSON is maintained by Aakash Chhoker. Send product, privacy, or accessibility feedback to aakashchhoker2021@gmail.com. Read more about the project on the About page, or browse tutorials on the blog.