Use this tool to format (beautify) raw JSON for better readability and validate JSON syntax to ensure it is error-free and well-structured.
Input JSON String:
Result:
Validator Output:
Formatter Output:
Start with pasting your raw or compressed JSON into the text box. If you have a file, simply upload it directly or add it by URL.
With one click on “Process”, this tool will automatically format JSON online, beautifying it for better readability as well as checking for syntax issues.
Once you’re satisfied with the result, make a click and copy the generated result.
You can now easily format and validate JSON code in one place:
JSON Formatter:
Functions to automatically format or beautify raw JSON data. It makes your JSON file easy to read and understand by adding proper indentation as well as spacing.
JSON Validator:
Helps to check JSON data for syntax errors and correctness, it ensures the JSON structure is valid and error-free prior to use.
JSON (JavaScript Object Notation) is a text-based format which is used to represent structured data. It’s the lightweight standard data format for both web applications and APIs due to its simplicity and flexibility. JSON is stated as a language-independent and human-readable, it becomes an ideal format for transmitting data between a server and client.
For instance, if you are working with RESTful APIs or configuring web applications, JSON is considered for defining how data is exchanged. When it comes to structuring, it is based on key-value pairs, arrays, and nested objects. It is very close to how JavaScript handles data.
Developers, data engineers, and testers entirely rely on formatted and validated JSON for ensuring their applications run smoothly.
Manually reading or debugging JSON data can be seen as a challenging task, specifically when your data is minified into a single unreadable line. That’s where our online JSON formatter and JSON validator online takes place.
Here’s why developers can use our tool:
No matter whether you’re working on a small API response or just going to handle large nested JSON data, this is how your workflow is faster and more error-free.
This online JSON validator and formatter tool is helps developers, testers, and anyone for their daily relevant tasks:
This tool is built to serve a wide array of users:
Our online JSON formatter and validator is designed for streamlining your workflow without any huge manual intervention.
Definitely, we are here to prioritize your data privacy and security. This handy online tool runs within your browser, which indicates:
It is always a top-tier choice even if you’re working with sensitive JSON data, confidential project configurations, or internal API structures.
JSON is always strict with formatting. A tiny mistake can break your app. Here are some common issues our online JSON tool identifies:
❌ Missing commas or colons
A missing comma between key-value pairs or even a colon between key as well as value breaks the JSON structure.
❌ Unquoted keys
Unquoted keys are invalid, this means keys in JSON should always be in double quotes.
❌ Improper array or object nesting
JSON arrays or objects opened as well as closed, mismatched nesting can leads to parsing errors.
❌ Unexpected tokens
Extra characters such as &, ;, or stray brackets are something that can cause syntax issues.
❌ Extra trailing commas
Trailing commas right after the last item in an object or even array are not allowed in JSON.
❌ Mismatched braces or brackets
Each opening { or [ must have a matching closing } or ] to form JSON validity.
❌ Using single quotes instead of double quotes
JSON requires double quotes for strings as well as keys; single quotes are not accepted.
❌ Numerical keys in objects
Object keys must be strings in double quotes, if numbers alone as keys are invalid.
❌ Null values without quotation
While null itself is valid, the keys that are associated with null must still be in double quotes.
❌ Empty strings as keys
Although technically valid, still empty string keys are stated as bad practice and often lead to parsing issues.
You can find that this tool acts as a JSON syntax checker, it ensures your structure meets valid JSON formatting and validating rules.
Our JSON validator and formatter is 100% free, no hidden charges or sign up process involves.
Yes, this online tool is mainly optimized for handle large JSON files and won’t crash your browser.
Obviously, we do not store, share, or collect your data. All JSON file handling happens in your browser.
Yes, this tool for your JSON files is fully responsive and works on all screen sizes and modern browsers.
Definitely, our tool runs a live check on pasted or even uploaded content along with flag eros within no time.
Primarily .json files, but you can swiftly paste the text from .txt or .js that contains JSON objects.