Shuffle Lines
Randomly reorder the lines of your text with one click. Great for shuffling lists, creating random quiz question orders, mixing up data, or just adding a little unpredictability. No signup, no uploads — everything happens instantly in your browser.
Why use this Shuffle Lines tool?
Need to mix up a list? Instead of manually cutting and pasting, this tool randomly rearranges lines using a solid shuffle algorithm. It's perfect for educators, developers, or anyone who wants to randomize a set of items. Because it runs in your browser, your data stays private and the shuffling is instant.
- True random order – uses the Fisher‑Yates (Knuth) shuffle algorithm for unbiased randomization.
- Auto‑shuffle option – enable auto‑shuffle and watch the output re‑randomize every time you modify the input.
- Preserves line integrity – only the order changes; each line's content remains exactly the same.
- Instant, private – all processing is done locally; no data is ever uploaded.
How to shuffle lines (step‑by‑step)
1. Paste your lines
Drop the list or text you want to randomize into the left box.
2. Click Shuffle
Hit the Shuffle button and the lines will instantly reorder. Each click produces a different random sequence.
3. Enable auto‑shuffle (optional)
Toggle "Auto‑shuffle on input change" to have the output re‑randomize every time you type or paste new text.
4. Copy or download
The shuffled lines appear on the right. Copy them to your clipboard or save as a .txt file.
Example: shuffling a to‑do list
| Input lines | Shuffled output (example) |
|---|---|
| Buy groceries Call dentist Finish report Walk the dog | Finish report Walk the dog Buy groceries Call dentist |
Common use cases
- Quiz questions: Randomize the order of multiple‑choice answers or questions for different students.
- Playlist generation: Shuffle a list of songs or videos for a more varied sequence.
- Testing and sampling: Randomly order test cases or data sets to avoid bias.
- Games and contests: Shuffle participant names or prize drawings.
Pro tips
- If you want to shuffle lines but keep duplicates together, you can first use our Duplicate Line Remover and then shuffle, or shuffle directly — the algorithm doesn't remove duplicates.
- For reproducible shuffling (same seed every time), the tool currently uses the browser's built‑in randomness. If you need a seeded shuffle, you could use a custom script; the tool is not designed for cryptographic randomness.