Loading JSON Array Filter...

Please wait a moment

How to Filter JSON Arrays - Step by Step Guide

Step 1

Input Your JSON Array

Start by providing your JSON array! Whether you're working with arrays of objects, primitive values, or need to format JSON first, you have several convenient options for filtering JSON data:

•

Paste directly: Copy your JSON array and paste it into the input editor

•

Upload a file: Click "Upload" to select a .json or .txt file from your computer

•

Try the sample: Click "Sample" to load example data and see how the filter works

Step 2

Set Up Your Filter

Once your JSON array is loaded, configure your filter options:

•

Select filter key: For arrays of objects, choose which property to filter by (e.g., "name", "age", "department")

•

Choose operator: Select from equals, contains, starts with, ends with, greater than, less than, and more

•

Enter filter value: Type the value you want to filter by

•

Real-time filtering: Results update automatically as you change filter options

Example: Filter by Department = "Engineering"

Filter the array to show only items where department equals "Engineering". The tool will automatically show only matching items:

[
  {
    "name": "Alice Johnson",
    "department": "Engineering",
    "age": 28
  },
  {
    "name": "Diana Prince",
    "department": "Engineering",
    "age": 31
  }
]

Other Filter Examples:

• Contains: Filter names containing "John"
• Greater than: Filter age > 30
• Starts with: Filter department starting with "Eng"

Primitive Arrays:

For arrays like ["apple", "banana", "cherry"], filter directly by value without selecting a key

Step 3

View Filtered Results

The filtered array appears in the output panel with proper formatting and syntax highlighting. The tool provides immediate visual feedback showing exactly which items match your filter criteria:

•

Result count: See how many items match your filter (e.g., "3 of 10"). This helps you understand the impact of your filter before exporting

•

Syntax highlighting: Color-coded elements make it easy to read the filtered data. Strings appear in green, numbers in yellow, and keys in blue

•

Validation: Green checkmark confirms your filtered array is valid JSON and ready for use in APIs, databases, or applications

•

Real-time updates: As you modify filter criteria, the results update instantly without needing to click any buttons

Example: Filter Results Visualization

The output shows only matching items. Here's what happens when filtering by different criteria:

Filter: age > 30

Shows: "2 of 5" items

Charlie (42), Bob (35)

Filter: name contains "Alice"

Shows: "1 of 5" items

Alice Johnson

Step 4

Export Your Filtered Array

Get your filtered JSON array ready for use! Multiple export options make it easy to integrate into your workflow. The filtered data maintains perfect JSON syntax and can be used immediately in any application or API:

•

Copy to clipboard: One-click copying for quick pasting into your code editor, API requests, or database queries. Perfect for rapid development workflows

•

Download as file: Save as a .json file for later use, version control, or sharing with your team. The file maintains proper formatting

•

Real-time validation: Green checkmark confirms your filtered array is valid JSON and ready to use in production environments

•

Chain with other tools: The filtered output can be used with JSON Array Sorter, JSON to CSV, or JSON to Table for further processing

Example: Common Filter Use Cases

🔍 Data Search

Find specific records in large datasets, like customers by email domain or products by category

📊 Analytics

Filter data for analysis - show only high-value transactions, active users, or recent entries

🎯 API Filtering

Filter API response arrays before displaying in your frontend to show only relevant data

📈 Reports

Create focused reports by filtering data by date ranges, status, or other criteria before export

Frequently Asked Questions

How do I filter a JSON array?

Simply paste your JSON array into the input area. If it's an array of objects, select the key you want to filter by, choose a comparison operator (equals, contains, greater than, etc.), enter the filter value, and the array will be filtered automatically. For primitive arrays, you can filter directly by value without selecting a key.

What filter operators are available?

The tool supports multiple operators: equals, contains, starts with, ends with, not equals, greater than (>), less than (<), greater than or equal (>=), and less than or equal (<=). For numeric values, comparison operators work numerically, while for strings they work alphabetically.

Can I filter by multiple conditions?

Currently, the tool filters by a single condition at a time. For multiple conditions, you can filter by the first condition, then use the filtered result as input and apply the second filter. Alternatively, you can use the filtered JSON in your code editor with custom filtering logic.

Can I filter primitive arrays (strings, numbers)?

Absolutely! The tool handles arrays of primitive values like strings, numbers, and booleans. Simply select an operator and enter the filter value. The array will be filtered automatically without needing to select a key.

Is the filtered JSON ready for APIs and databases?

Yes! The filtered JSON maintains perfect syntax compatibility with all systems. The output is valid JSON that can be used directly in APIs, databases, or any application that accepts JSON data. You can also sort the filtered results or convert them to a table format for easier viewing.

Is the JSON array filter completely free?

Yes, totally free with no limitations on array size, usage frequency, or features. No registration required, and you can filter unlimited JSON arrays with full syntax highlighting and validation.

JSON Array Filter - Filter JSON Arrays Online

Free Online Tool to Filter JSON Arrays by Key or Value

Key Features: