JSON Formatter & Validator
Format, beautify, validate and copy JSON instantly. A simple developer tool for APIs, configuration files and everyday debugging.
Free Online JSON Formatter
This free online JSON formatter helps developers format and beautify JSON data into a clean, readable structure. Paste your JSON, click the format button and get properly indented JSON instantly.
The tool also validates JSON syntax before formatting it. Invalid JSON is detected automatically and an error message is displayed so you can fix the problem quickly.
Use this JSON beautifier when working with REST APIs, API responses, JavaScript, TypeScript, configuration files, debugging tools or any application that works with JSON data.
Format
Turn messy JSON into clean and readable formatted data.
Validate
Check whether your JSON contains valid syntax.
Copy
Copy formatted JSON to your clipboard with one click.
JSON Formatter FAQ
What is a JSON formatter?
A JSON formatter takes JSON data and adds indentation and line breaks, making the structure easier to read and understand.
Is this JSON formatter free?
Yes. This JSON formatter is completely free to use and does not require an account.
Can this tool validate JSON?
Yes. The tool validates your JSON before formatting it and shows an error if the JSON syntax is invalid.
Can I copy formatted JSON?
Yes. Once valid JSON has been formatted, you can copy the complete result with the Copy JSON button.
Is my JSON uploaded to a server?
No. JSON formatting happens directly in your browser, so the tool does not need to send your JSON to a server.