Indent
Run Format to see prettified JSON here.Was this tool helpful?
Prettify messy JSON for reading, minify it for production payloads, and validate syntax with exact line and column numbers on errors.
Use it when inspecting API responses, editing config files, or cleaning copied JSON before commit.
Run Format to see prettified JSON here.It takes minified or poorly formatted JSON and adds proper indentation and line breaks to make it human-readable. It also validates the JSON and shows an error if the input is invalid.
You can choose 2 spaces, 4 spaces, or a tab character as the indentation style.
Minify removes all whitespace from the JSON, making it as compact as possible. This is useful before sending JSON in API requests or storing it in a database.
No. All formatting and validation happens in your browser using the built-in JSON.parse and JSON.stringify functions. Nothing is uploaded.