JSON Formatter & Validator

Format messy JSON into a readable structure and validate its syntax.

How to Use the JSON Formatter & Validator

Paste your JSON data into the 'JSON Input' text area. Click 'Format JSON' to pretty-print the JSON for better readability. Click 'Validate JSON' to check if the JSON syntax is correct; a message will appear below the output area indicating success or any errors. Use the 'Clear' button to reset both input and output fields.

Frequently Asked Questions (FAQ)

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language, and is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language.

JSON data often comes in a minified or unformatted string, especially when received from APIs. Formatting it (pretty-printing) adds indentation and line breaks, making it much easier for developers to read, understand, and debug the data structure.

JSON validation checks the syntax of your JSON data against the official JSON specification. It ensures that all brackets, braces, quotes, commas, and other structural elements are correctly placed and matched. If any syntax errors are found, the validator will typically point out the location of the error.

Yes, absolutely. This JSON Formatter & Validator operates entirely client-side within your web browser. Your JSON data is never sent to our servers, ensuring your privacy and data security.