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Uniq Array

Remove duplicates from an array using lodash _.uniq

Remove duplicate values from a JSON array.

Highlights:

  • Uses lodash _.uniq
  • Keeps the first occurrence of each value
  • Returns unique values as JSON

Example:

  • Array: [1, 2, 2, 3]
  • Result: [1, 2, 3]

Enter a JSON array

Key Facts

Category
Data Processing
Input Types
textarea
Output Type
text
Sample Coverage
4
API Ready
Yes

Overview

The Uniq Array tool allows you to quickly clean your data by removing duplicate entries from any JSON array. Powered by the reliable lodash _.uniq method, it ensures your datasets remain concise by preserving only the first occurrence of each value.

When to Use

  • •When you need to sanitize a list of IDs or tags by removing redundant entries.
  • •When preparing data for API requests that require unique identifiers.
  • •When you want to quickly verify the unique items present in a large JSON dataset.

How It Works

  • •Paste your JSON array into the input field.
  • •The tool processes the array using the lodash _.uniq function.
  • •The system automatically filters out all subsequent duplicate values.
  • •The resulting unique JSON array is displayed for immediate use.

Use Cases

Cleaning up user-provided input lists to prevent duplicate database entries.
Normalizing configuration arrays where only unique settings are permitted.
Preparing clean datasets for frontend dropdown menus or selection lists.

Examples

1. Cleaning User ID Lists

Data Analyst
Background
A marketing team provided a list of user IDs that contains several accidental duplicates due to manual entry errors.
Problem
The system requires a unique list of IDs to process a targeted email campaign without sending multiple messages to the same user.
How to Use
Paste the raw list of IDs into the Array input field and run the tool.
Example Config
[101, 102, 101, 103, 102, 104]
Outcome
The tool returns [101, 102, 103, 104], providing a clean list ready for the campaign.

2. Removing Duplicate Tags

Content Manager
Background
A blog post has a collection of tags that were added over time, resulting in repeated keywords.
Problem
The tag cloud component on the website displays redundant labels, which looks unprofessional.
How to Use
Input the array of tags into the tool to filter out the repetitions.
Example Config
["tech", "news", "tech", "design", "news"]
Outcome
The tool outputs ["tech", "news", "design"], allowing for a clean and organized tag display.

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FAQ

What happens to the duplicate values?

Duplicate values are removed, and only the first occurrence of each unique item is kept in the final output.

Does this tool support nested objects?

This tool is designed for standard JSON arrays of primitives. For complex nested objects, ensure your input is a valid flat array.

Is the order of elements preserved?

Yes, the tool maintains the original order of the first occurrences while stripping away any subsequent duplicates.

What library does this tool use?

This tool utilizes the industry-standard lodash _.uniq method to ensure accurate and efficient deduplication.

Is my data stored on your servers?

No, all processing is performed locally in your browser to ensure your data remains private and secure.

API Documentation

Request Endpoint

POST /en/api/tools/uniq-array

Request Parameters

Parameter Name Type Required Description
array textarea Yes Enter a JSON array

Response Format

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}
Text: Text

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-uniq-array": {
      "name": "uniq-array",
      "description": "Remove duplicates from an array using lodash _.uniq",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=uniq-array",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]