Developer
JSON Formatter
Format, validate, and inspect JSON snippets while working with APIs and automation tools.
Sample JSON is valid.
Result
{
"project": "workflowtools.space",
"type": "free tools website",
"categories": [
"SEO",
"Developer",
"Business"
],
"active": true
}How to use this tool
- Paste JSON into the input area or load the sample JSON.
- Choose Format JSON to create readable indentation, or Minify JSON to remove extra whitespace.
- Use Validate JSON when you only want to check whether the input parses correctly.
- Copy the result and use it in your API client, automation step, or configuration field.
Practical examples
A developer can format a webhook payload before checking which fields are available.
An automation builder can minify JSON before pasting it into a request body field.
A support teammate can validate a copied API response before sharing it with an engineer.
Common mistakes to avoid
- Using single quotes around strings or object keys.
- Leaving a trailing comma after the last item in an object or array.
- Pasting JavaScript objects with comments and expecting them to be valid JSON.
- Minifying a payload before reviewing whether sensitive data is included.
Useful internal links
Frequently Asked Questions
Does this JSON formatter send data to a server?
No. The formatting, minifying, and validation logic runs in your browser with standard JavaScript parsing.
Why does valid-looking JSON fail validation?
Common causes include trailing commas, single quotes, comments, missing quotes around keys, or an extra bracket.
When should I minify JSON?
Minify JSON when you need a compact value for a config field, test request body, or storage field. Keep formatted JSON for review.