Format, Validate & Visualize Effortlessly!
The JSONtr.ee tool was built to make working with JSON data faster, easier, and error-free. JSON is often compacted to save space, making it hard for humans to read and debug. JSONtr.ee solves this by automatically formatting, beautifying, and validating your JSON code, turning messy input into clean, structured data that's easy to understand.
To improve the debugging experience, JSONtr.ee includes advanced JSON validation based on the latest specifications, including RFC 8259 and ECMA-404. Whether you're building APIs, developing web applications, or just checking data structures, JSONtr.ee helps ensure your JSON is perfectly formatted and compliant with the standards.
Additionally, JSONtr.ee can automatically detect and fix common errors such as incorrect quotes, missing brackets, extra commas, and unescaped characters. With these features, developers and data analysts can quickly identify issues and streamline their workflows without hassle.
Paste your JSON raw — JSONtr.ee makes it easy to format and validate your data in seconds.
JSON (JavaScript Object Notation) is a lightweight, easy-to-read, and easy-to-write data format designed to represent complex data structures and facilitate information exchange between systems. Thanks to its simplicity and similarity to plain text, JSON has become a widely adopted standard in web applications, APIs, and data communication systems.
Although it originated from JavaScript, JSON is completely language-independent, making it the perfect choice for any project, regardless of the technology stack.
There are several reasons why JSON is the preferred choice for data interchange:
Readability – JSON is human-readable when properly formatted.
Compactness – Unlike XML, JSON uses a minimal markup structure.
Easy to Parse – Especially straightforward to work with in JavaScript.
Universal Support – Almost every modern programming language has built-in libraries for JSON.
JSON offers a clear, efficient, and cross-platform solution for representing and exchanging data.
You don't need deep JavaScript knowledge to work with JSON, but following certain basic rules is essential:
Data is structured in name/value pairs.
Pairs are separated by commas.
Objects are enclosed within curly braces {}.
Arrays are enclosed within square brackets [].
Keys must be in double quotes and unique within an object.
String values must be enclosed in double quotes.
Boolean values use the lowercase literals true or false.
Numbers should use floating-point format without unnecessary leading zeros.
Special characters must be <b>escaped</b> using a backslash (<code>\</code>).
Null values are represented by the lowercase literal null.
Dates and similar object types must be manually converted to strings.
The last element in an object or array should not be followed by a comma.
Standard file extension for JSON files is .json.
The MIME type for JSON files is application/json.
Following these simple rules ensures your JSON is valid and ready for use.
Writing JSON may seem easy, but even a small error — like an extra comma or missing quotes — can break your data structure and waste valuable time.
Using a tool like JSONtr.ee allows you to:
Automatically validate your JSON.
Detect errors quickly, including the exact line where the problem occurs.
Format your JSON for better readability.
Fix common mistakes like incorrect quotes, unescaped characters, and more.
JSONtr.ee is also open-source, giving you full transparency and the freedom to contribute or customize it for your own needs. Whether you're a developer, data analyst, or tech enthusiast, you can trust a community-driven tool built to make JSON easier for everyone.
This way, you can focus on building your project instead of spending hours troubleshooting tiny syntax issues.
JSONtr.ee is an online JSON editor, validator, and formatter. You can type your JSON raw directly into the editor.
Our tool will analyze your content and inform you of any issues based on official JSON standards (RFC 8259 and ECMA-404).
With JSONtr.ee, spotting and fixing errors in your JSON is fast, easy, and reliable.