How to Format and Validate JSON

JSON is the language of the web, but it can quickly become messy and hard to read. Here's how to use our JSON Formatter to clean it up.

Step 1: Paste Your JSON

Copy your raw JSON data and paste it into the input area. It doesn't matter if it's all on one line or poorly indented.

Step 2: Choose Your Indentation

You can choose between 2 spaces, 4 spaces, or tabs for indentation. 2 spaces is the most common standard for web APIs.

Step 3: Validate

Our tool automatically checks for syntax errors. If your JSON is invalid (e.g., missing a comma or a closing bracket), you'll see a clear error message.

Step 4: Copy or Download

Once you're happy with the formatting, you can copy the result to your clipboard or download it as a .json file.

Pro Tip

You can also use the "Minify" button to remove all whitespace, which is useful for reducing file size in production.