Randomize a JSON Array
Shuffle the positions of JSON array elements. Runs entirely in your browser, so your data never leaves your device.
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Output
The result appears here as you type.
How to use Randomize a JSON Array
- 1. Paste your JSON array. Put the JSON array you want reordered into the input pane. Its element values stay exactly the same; only their positions in the array get shuffled.
- 2. Decide whether to shuffle nested arrays. Turn on Shuffle nested arrays too if the array contains arrays of its own and you want those inner orderings scrambled as well, not just the outer one.
- 3. Pick an indent. Choose 2 spaces, 4 spaces or tabs for the shuffled output so it matches the formatting convention of wherever the result is headed next.
- 4. Copy the shuffled array. Copy the reordered array and paste it into your test file, quiz data, or wherever a randomized element order is exactly what you needed.
When to use Randomize a JSON Array
Randomize a JSON Array shuffles the positions of an array's elements without changing their content. Use Randomize a JSON Array whenever the order of items in a JSON array should be unpredictable, whether for testing, fairness, or variety.
- Shuffling a quiz question bank. A quiz app stores its questions as a JSON array and you want each attempt to present them in a different order. Shuffle the array once and update the source file.
- Randomizing a playlist file. A JSON playlist has tracks listed in the order they were added, but you want a shuffled version for a shuffle-play feature. Randomize the array and save it separately.
- Testing sort logic actually works. You want to confirm a UI's sort button truly reorders data rather than displaying data that happened to already be sorted. Shuffle the input array first so the sort is meaningful.
- Removing positional bias from a fixture. A test fixture's array happens to have all the edge cases at the end, which quietly hides bugs that only trigger early. Shuffling spreads them across random positions.
Examples
Shuffle a list
Input
[1, 2, 3, 4, 5]
Output
[ 4, 1, 5, 2, 3 ]
About the Randomize a JSON Array tool
Randomize a JSON Array runs as plain JavaScript in your browser tab, with no server behind it. Shuffle the positions of JSON array elements. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's JSON Tools section, 90 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with 2 settings, including Shuffle nested arrays too and Indent, and the result refreshes the moment you change one. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Randomize a JSON Array free to use?
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?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
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?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
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.