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JSON Formatter
Format, validate, and beautify JSON in your browser.
Overview
This tool takes raw or minified JSON and formats it into a clean, indented structure, making it easy to read and debug API responses, config files, or logs.
How to Use
- Paste your JSON into the input box.
- The tool validates and formats it automatically.
- Fix any syntax errors highlighted in the output.
- Copy the formatted JSON for use elsewhere.
Common Use Cases
- Debugging API responses that come back minified
- Validating JSON before committing config files
- Reviewing large nested JSON payloads during development
FAQ
Is my JSON data uploaded anywhere?
No. Formatting and validation run entirely in your browser — nothing is sent to a server.
Can it fix invalid JSON automatically?
It highlights syntax errors so you can fix them, but it won't guess at your intended structure.