JSON Formatter & Validator
Beautify, format, and validate your JSON data instantly. Our free online tool helps you debug JSON by making it readable. 100% private and runs in your browser.
Powerful, Simple, and Secure
Instant Formatting
Transform messy, single-line JSON into a neatly indented, human-readable format with a single click.
Error Highlighting
Quickly find syntax errors. Our validator points out exactly what's wrong, saving you valuable debugging time.
100% Private
Your data never leaves your machine. All processing happens locally in your browser, ensuring complete confidentiality.
Why Format JSON?
- Readability: Quickly grasp the structure of an API response or a configuration file.
- Debugging: Easily spot missing commas, mismatched brackets, or other common syntax errors.
- Sharing: Share JSON data with colleagues in a clean, professional format.
Your Privacy is Our Priority
This tool runs entirely in your browser. We do not upload, store, or analyze your data. Everything you process stays on your device.
FAQ
Is my data safe with this tool?
Yes, your data is 100% safe. This tool performs all formatting and validation directly in your browser using JavaScript. Your JSON data is never sent to our servers, ensuring complete privacy and security.
What does 'validating' JSON mean?
Validation is the process of checking if your JSON data adheres to the correct syntax rules. This includes checking for things like matching curly braces {}, matching square brackets [], and correct quoting. Our tool validates your JSON automatically.
Can this tool handle large JSON files?
Yes, the tool is designed to handle large JSON files efficiently. Since all processing is done on your local machine, performance will depend on your computer's processing power and available memory.