A JSON file is one of the most common data formats used today, especially on websites, in applications, and in modern software. You’ll find it everywhere, whether you’re working with online tools, API data, or app settings. AS a result, many people eventually need to learn how to open JSON files safely and correctly, even if they’re not developers.
In day-to-day situations like coding, data analysis, or troubleshooting an application, you may come across JSON files that can be confusing at first. They often appear as a block of text filled with brackets, quotes, and symbols, which can be hard to read without the right tools.
The good news? Opening a JSON file is very simple once you know the right method. Whether you’re using Windows, Mac, online viewers, or even your phone, the process only takes a few seconds. This guide will walk you through every method, step by step, so you can quickly view, read, and understand any JSON file.
What Is a JSON File? (Definition + Purpose)
A JSON file contains structured data written in a clean, readable format using key-value pairs, arrays, and objects. It’s designed to be lightweight, easy for humans to read, and simple for machines to process. Because of its flexibility, JSON has become the standard format for transferring and storing data.
You’ll see JSON used on websites, in mobile apps, in APIs, in databases, and even in system configuration files. It works well because it stores information in a clear, organized structure that both developers and beginners can understand.
Compared to formats like XML, JSON is much simpler and easier to read. And unlike CSV, which is primarily for tabular data, JSON can store complex, nested information. This makes JSON one of the most flexible data formats used today.
Common Uses of JSON Files:
JSON files are used in many real-world situations, such as:
- API response data from websites and apps
- Website configuration settings
- App settings stored by mobile and desktop applications
- Lightweight data storage for fast performance
- Import/export formats in tools like Excel, databases, and automation software
How to Open a JSON File on Windows?
Using Notepad:
Notepad is the simplest way to open a JSON file on Windows.
Just right-click the file and select Open with → Notepad.
You can view the content, but it may look messy because Notepad doesn’t format or color the data. This is why JSON can be hard to read in Notepad.
Using Notepad++
Notepad++ is a better option because it automatically formats JSON.
Steps to install:
- Download Notepad++ from its official website
- Install and open the program
- Drag your JSON file into Notepad++
To format the file, you can use built-in plugins that “beautify” the data. It makes your JSON colorful, readable, and well-structured, perfect for beginners.
Using Visual Studio Code (VS Code)
VS Code is one of the best tools for working with JSON.
Steps to use:
- Install VS Code
- Open the JSON file
- Add a JSON extension if needed
- VS Code automatically highlights, formats, and checks your JSON. It even shows errors if something is wrong in the file.
Using Web Browsers (Chrome, Firefox, Edge)
Most browsers can also open JSON files.
How to do it:
- Drag and drop the file into the browser
- Or install a JSON viewer extension
- This gives you a clean and organized view without installing heavy software.
How to Open a JSON File on Mac?
Using TextEdit:
- TextEdit can open JSON files instantly.
- Right-click → Open With → TextEdit.
- However, like Notepad, the file may look unformatted and hard to understand.
Using Visual Studio Code on macOS
- VS Code works perfectly on Mac, too.
- Just install it, open the JSON file, and it will automatically format the content. You can also use extensions for better highlighting and validation.
Using Atom or Sublime Text
- These editors offer smooth viewing, color coding, and quick search features.
- They are popular among developers because they make complex JSON files easy to navigate.
How to Open a JSON File Online? (Free Viewers & Editors)
Online tools are perfect if you don’t want to install software.
Some of the best options include:
- JSONLint
- JSON Editor Online
- CodeBeautify
How to use them:
- Open the website
- Upload or paste your JSON file
- View formatted, clean, and readable data instantly
These tools auto-format the file and highlight any errors. Since everything runs online, it’s quick and works on any device.
How to Open a JSON File on Mobile? (Android & iPhone)
Android Apps
You can open JSON files on Android using apps like:
- JSON Viewer
- QuickEdit
- VS Code Mobile versions
Just download one of the apps, open it, and load the JSON file from your device.
iPhone/iPad Apps
For iOS, these apps work great:
- Jayson
- JSON Pro
You can open a JSON file by tapping the share button and selecting the viewer app. These apps format the data neatly, making it easy to understand.
How to Edit a JSON File? (Beginner Guide)
Editing JSON is easy as long as you’re careful.
Here are some tips:
- Make small changes and save backups
- Avoid deleting symbols like commas or brackets
- Use formatters to auto-structure your file
- Use JSON validation tools to check for mistakes
Editing with tools like VS Code or JSONLint helps you avoid errors and keep your data clean.
Examples of JSON Files (With Explanation):
Here’s a simple JSON sample:
| { “name”: “John”, “age”: 25, “skills”: [“HTML”, “CSS”, “JavaScript”] } |
- Keys are like labels (“name”)
- Values are the data (“John”)
- Arrays hold lists
- Objects contain structured data
Real examples include API responses, website settings files, and product details in e-commerce stores.
JSON vs Other File Formats (Key Differences):
JSON vs XML
- JSON is easier to read, uses fewer symbols, and loads faster.
- XML is more complex and harder to understand, but it is good for heavy, structured data.
JSON vs CSV
- JSON is best for complex, nested data.
- CSV works better for simple table-like information.
- Each format serves a specific purpose based on the type of data you’re working with.
Troubleshooting: Why JSON File Won’t Open
A JSON file may not open because of:
- File corruption
- Wrong file extension
- Encoding issues
- Errors inside the JSON data
To fix issues, use an online JSON validator or formatter to clean and repair the file structure.
Best Tools to Work With JSON Files (2025 Recommendations)
Some of the top tools for JSON include:
- VS Code
- Notepad++
- Postman
- Online JSON validators
- Browser extensions
These tools make it simple for beginners and professionals to view, edit, and format JSON.
Conclusion:
Opening a JSON file is easy once you know the right method. Whether you’re on Windows, Mac, mobile, or using an online tool, you can view and understand JSON in just a few clicks. The tools mentioned above make the process simple for both beginners and professionals.
Editors like VS Code and Notepad++ provide clean formatting, while online viewers let you read JSON instantly without installing anything. Mobile apps also make it convenient to open files on the go.
Choose the method that fits your device, follow the steps, and you’ll be able to work confidently with any JSON file you find.
Frequently Asked Questions (FAQs):
What program opens JSON files?
VS Code, Notepad++, browsers, and online editors.
Can I convert JSON to Excel?
Yes, using Excel’s import tool or online converters.
Is JSON safe to open?
Yes, it’s just text. But be cautious when downloading files from unknown sources.
Why does JSON look messy?
Because it’s unformatted, using a formatter makes it neat and readable.
Can I edit JSON without coding?
Yes, as long as you use simple tools and follow the structure.