About Awesome JSON formatter
The Awesome JSON formatter was designed to make working with raw JSON much easier, especially when the data is compacted into a single line with no formatting. Since unformatted JSON can be difficult to interpret, this tool helps by presenting it in a clean, readable format — making it far more accessible for developers to read, understand, and debug.
To enhance its usefulness, JSON validation features were introduced based on Douglas Crockford’s original guidelines from RFC 4627, as published on json.org. Over time, support was extended to include modern standards like RFC 8259 and ECMA-404, allowing broader compatibility and stricter validation when needed.
One of the latest improvements is the automatic error correction function. When turned on, it can intelligently fix common issues in malformed JSON, such as mismatched or missing quotes, improperly cased literals, stray characters, invalid keys, comments, and extra commas — helping users quickly recover from syntax errors.
What is JSON?
JSON (JavaScript Object Notation) is an open data format that is not tied to any specific programming language. It uses a readable text structure to represent data in key-value pairs.
Although it originated in JavaScript, JSON is now widely supported. You can easily generate and process it using many programming languages such as JavaScript, Python, PHP, Ruby, and Java.
Want to learn more about JSON? Check out the resources below for further information.
Core features of JSON
- Objects In JSON, objects are collections of key-value pairs wrapped in curly braces {}. Each key is linked to a specific value.
- Arrays JSON allows for arrays — ordered lists of values contained within square brackets [].
- Data types The format supports a range of basic data types, such as strings, numbers, booleans (true/false), null, as well as nested objects and arrays.
- Widely used in APIs JSON is a standard format for exchanging data between clients and servers in web applications, making it ideal for API interactions.
- Simpler than XML: Thanks to its lightweight structure and cleaner syntax, JSON is often chosen over XML for transmitting data between systems.
Frequently asked questions
Which JSON specification should I choose?
If you're unsure which to choose, we recommend validating your JSON using the latest standard, RFC 8259 — it offers the best compatibility across systems.
Is any of my JSON data recorded or saved?
Definitely not! Your data is only processed temporarily and immediately returned to you — nothing is stored. For full details, please review our Privacy Policy.
How do I format a JSON file?
Simply paste in your JSON code, and press the "Parse JSON" button, and your code will be automatically turned into a beautiful and readable JSON format.
Why Use a JSON Formatter and Validator?
JSON is widely recognized as the go-to format for exchanging data across web platforms and APIs. Whether you're a developer inspecting API responses, a data analyst reviewing structured exports, or a QA specialist validating output, using a JSON formatter and validator simplifies the process. It not only enhances readability but also ensures that the data structure is accurate — saving time and minimizing potential mistakes.
Can I donate to the project?
Absolutely! While there's no obligation to donate, every contribution means a lot to us.
We're deeply grateful to everyone who has already supported us — your generosity and kindness truly inspire us.