JSON Validator

Identify and fix the errors in your JSON documents.

Our online free JSON validator

NanoWebTools Free Online JSON Validator validates the integrity and syntax of JSON data using JavaScript Object Notation (JSON).

Our online JSON validator is a JSON Object validator. Copy and paste, or directly type, in the editor above, and then click the validate button to validate your jumbled JSON code.

What Exactly Is JSON?

JSON (pronounced "Jason"), which stands for "JavaScript Object Notation," is a data representation that is both human-readable and elegant. It is a widely used data format with the flexibility to be used in any application without regard to language. It is a textual representation. As a result of this, almost every system makes use of it for data communication.

JSON Validator

Why Should JSON Be Used?

JSON is useful for a variety of reasons. The first reason to use JSON is that it is independent of the programming language you are using. JSON data has become a universal data representation that can be used across all platforms because it can communicate in various computer languages.

Other factors include:

  • Readability: JSON is simple to understand.
  • Compactness: Unlike XML and HTML, JSON does not use a markup structure.
  • There are numerous libraries available for programming languages that handle JSON within code.

Correct JSON Format

Anyone can read and use JSON without knowing JavaScript.

The following specific rules must be followed:

Data is organised in pairs, such as name-value pairs. Commas are used to separate the data.

  • The opening and closing brackets protect JSON objects.
  • Empty curly brackets can represent an empty object. {}
  • JSON objects include square brackets that open and close to enclose arrays contained within the object.
  • Square brackets can be used to represent an empty array. []
  • A JSON object member is represented by a key-value pair enclosed in double quotation marks.
  • A unique key should be assigned to each member of the JSON object.
  • If a JSON member's value is a string, it must be enclosed in quotation marks.
  • The terms "true" and "false" are used to represent the values of a Boolean function (1,0)
  • When storing a JSON file, the '.json' extension is expected to be used.
  • The mime type for JSON files should be "application/json."

You will be able to generate a JSON object if you follow these guidelines. If you're unsure about your JSON object, we recommend using our online JSON validator, which can validate your object in milliseconds. The validator can be found here.

Why Should You Use Our JSON Validator?

Programming is a difficult aspect of our lives that necessitates a great deal of focus, excellent knowledge, and extensive experience in the programming language. JSON, as you may know, is a simple object. Still, writing and validating code is difficult, time-consuming, and difficult. A single missing bracket in a JSON object can cause an error in your code, wasting your time fixing it.

Using an online tool, such as a JSON validator, is the most efficient way to find and fix errors while saving time. It will validate your JSON code and return the line numbers of the code that contains errors. It's a great way to fix errors in your JSON code without having to spend hours searching for a missing pair of double quotes somewhere in your code.

Describe the operation of the JSON Validator in Nanowebtools.

  • Copy and paste or type your code directly into the text field.
  • On the JSON validation page, click the validate button. It will validate your JSON Object against JS standards and notify you of any human-made errors.
  • We also have reset and sample buttons, which come in handy when you need to double-check an example or reset your object within a text field.

JSON Errors:

Here are some common errors that you may encounter when working with JSON objects in your code.

  • Perhaps you have an extra comma at the end of your list. Something along the lines of "a": "b",
  • Make sure to adhere to JSON's syntax. For instance, always use double quotes and proper brackets.

Other JSON Resources:

If you want to display data in the format, you can use our free JSON formatter tool to format it. Meanwhile, you can use online JSON Minify, and online JSON editor.

JSON conversion tools such as JSON to XML, JSON to TEXT, CSV to JSON, TSV to JSON, JSON to CSV and XML to JSON are also available.

Aside from JSON tools, we also have Image converter tools, which are powerful free and online tools that you will enjoy using.


Aarim Khan

CEO / Co-Founder

Our goal is to provide online free tools so you don't have to install any software for basic usages. We are trying to add more tools and make these tools free forever.

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