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Array Shuffle

Randomly shuffle array elements with support for different shuffling algorithms and reproducible results

Key Facts

Category
Development
Input Types
textarea, select, text, number
Output Type
text
Sample Coverage
4
API Ready
Yes

Overview

The Array Shuffle tool allows you to quickly randomize the order of elements in any list using professional-grade algorithms, ensuring fair and unpredictable results for your data.

When to Use

  • •Randomizing the order of names or items for fair selection processes.
  • •Creating randomized test datasets for software development and debugging.
  • •Shuffling sequences for games, simulations, or presentation slides.

How It Works

  • •Paste your list of items into the input field and select the appropriate delimiter.
  • •Choose a shuffle algorithm, such as Fisher-Yates, to determine the randomization logic.
  • •Apply optional settings like a random seed for reproducible results or specific shuffle modes.
  • •Select your preferred output format and generate the shuffled list instantly.

Use Cases

Generating randomized participant lists for giveaways or lottery draws.
Shuffling question banks for educational quizzes to prevent cheating.
Randomizing task queues or test cases in automated software testing workflows.

Examples

1. Randomizing Quiz Questions

Teacher
Background
A teacher has a list of 20 questions and wants to create three different versions of a quiz to prevent students from sharing answers.
Problem
Manually reordering questions is tedious and prone to human bias.
How to Use
Paste the list of questions, select 'Fisher-Yates' as the algorithm, and generate the output in 'Simple' format.
Example Config
shuffleAlgorithm: fisher-yates, outputFormat: simple
Outcome
The tool provides a perfectly randomized list of questions that can be copied directly into the quiz document.

2. Creating Test Data for Load Testing

QA Engineer
Background
An engineer needs to test a database query with a randomized sequence of user IDs to simulate real-world traffic patterns.
Problem
Sequential IDs do not accurately represent the random nature of incoming user requests.
How to Use
Input the list of user IDs, set the shuffle mode to 'Full', and export the result as a JSON array.
Example Config
shuffleAlgorithm: fisher-yates, outputFormat: json
Outcome
A JSON-formatted array of randomized user IDs ready to be imported into the load testing script.

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FAQ

Can I get the same shuffle result twice?

Yes, by entering a specific number in the 'Random Seed' field, you can generate the same randomized output whenever you use that same seed.

What is the difference between Fisher-Yates and other algorithms?

Fisher-Yates is the industry standard for unbiased shuffling, ensuring every possible permutation is equally likely.

How do I handle custom separators?

Select 'Custom' in the Input Delimiter dropdown and enter your specific character, such as a pipe (|) or tab, in the Custom Delimiter field.

Can I shuffle only part of my list?

Yes, use the 'Partial Shuffle' mode to randomize only a subset of your provided array elements.

What output formats are supported?

You can export your results as a formatted table, JSON, CSV, or a simple text list.

API Documentation

Request Endpoint

POST /en/api/tools/array-shuffle

Request Parameters

Parameter Name Type Required Description
arrayInput textarea Yes -
delimiter select Yes -
customDelimiter text No -
shuffleAlgorithm select Yes -
numberOfShuffles number No -
seed number No -
shuffleMode select Yes -
outputFormat select Yes -

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-array-shuffle": {
      "name": "array-shuffle",
      "description": "Randomly shuffle array elements with support for different shuffling algorithms and reproducible results",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=array-shuffle",
      "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]