Randomize a Matrix
Shuffle all elements. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Randomize a Matrix
- 1. Paste your matrix. Enter the matrix as rows on separate lines with values separated by spaces. The shape, meaning the row and column count, is preserved after shuffling.
- 2. Set the element separator. Choose Element separator to control how values are split within each row, matching the delimiter your original matrix or downstream tool uses.
- 3. Copy the shuffled matrix. The output pane shows every element randomly redistributed across the same shape. Copy it into a puzzle, a randomized test dataset, or a game board layout.
When to use Randomize a Matrix
Randomize a Matrix shuffles all the elements of a matrix into new positions while keeping its original row and column shape. Use it whenever you need the same set of values scrambled into a different arrangement.
- Creating a shuffled puzzle grid. You are building a sliding-tile or number puzzle and need a starting grid where the same digits are scrambled into a random but solvable arrangement, using the original values in shuffled positions.
- Generating a randomized test dataset. You have a matrix of sample values and want a shuffled version to test whether a sorting or pattern-detection algorithm handles disorder correctly, without changing the underlying value distribution.
- Building a bingo or lottery-style card. You need a grid of numbers arranged randomly for a bingo card or drawing, starting from a fixed set of values and just needing their positions scrambled.
- Demonstrating permutations in a math lesson. A lesson on permutations and combinations uses a small matrix to show how many distinct arrangements exist, and shuffling it live gives students a visual example of one such permutation.
Examples
Shuffle the elements, keeping the shape
Input
1 2 3 4 5 6
Output
5 1 4 3 6 2
JSON input works too
Input
[[1,2],[3,4]]
Output
3 1 4 2
About the Randomize a Matrix tool
Randomize a Matrix does its work locally, right in the browser. Shuffle all elements. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Math Tools collection on EditSafely, a set of 234 small, focused Math utilities that share the same instant, private workspace.
You can shape the output with the Element separator setting, and the result refreshes the moment you change it. 2 worked examples further down the page show exactly what the tool produces for real inputs.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Does Randomize a Matrix cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.