About the JSON Formatter
API responses and configuration files are often delivered as a single dense line of JSON. This formatter parses your JSON and prints it again with one value per line and consistent indentation, so the structure is easy to read.
Formatting also validates the input. If there is a problem, such as a trailing comma, a missing quote or a single-quoted string, the error message tells you what went wrong and where. Your data is processed locally and never uploaded, which matters when the JSON contains tokens or personal data.
How to use it
- Paste your JSON.
- Choose your preferred indentation.
- Click Format JSON. Fix any reported error and try again.
Example
{"name":"TextForge","tools":50,"tags":["text","free"],"owner":{"country":"Canada"}}
{
"name": "TextForge",
"tools": 50,
"tags": [
"text",
"free"
],
"owner": {
"country": "Canada"
}
}
When to use it
- Reading API responses while debugging.
- Tidying configuration files before committing them.
- Checking that JSON is valid before using it.
- Preparing readable examples for documentation.
Frequently asked questions
Why does valid-looking JSON fail?
Common causes are trailing commas, single quotes instead of double quotes, comments and unquoted keys. None of these are allowed in standard JSON.
Is my data uploaded?
No. Parsing and formatting happen entirely in your browser.
Does it change my data?
The values stay the same. Very large numbers beyond JavaScript’s safe range may lose precision, and duplicate keys keep only the last value.
Is the text I enter kept private?
Yes. The JSON Formatter runs entirely in your web browser, so your text is never uploaded to or stored on our servers. Like most free websites, TextForge shows ads from Google, which may use cookies. See our Privacy Policy for details.