Mezclador de lista personalizada
Un elemento por línea. Mezcla la lista completa o elige un único ganador.
The Custom List Randomizer: Any List, Instantly Fair
Every list randomizer tool you have ever used before had one critical limitation: it only knew about its own data. You could pick a random restaurant from the tool's restaurant list, or a random name from its name database. But what if you needed to randomize your specific team's names? Your exact shortlist of options? Your personal bracket of choices?
The Custom List Randomizer solves this by letting you bring any list you want. Paste your items — one per line — and the tool shuffles them using the Fisher-Yates algorithm, the same mathematically proven shuffle used in lottery systems and scientific randomization. Every possible ordering of your list is equally likely. The result is genuinely random, not pseudo-random or weighted by position.
Your list is saved in your browser's localStorage — it persists between sessions without ever being sent to a server. Sensitive lists (employee names, confidential project options, private decisions) are safe to use. Nothing leaves your device.
Real-World Uses for a Custom List Randomizer
Drawing contest winners: Paste all entrant names and click "Pick a Winner." The dramatic animation makes the draw feel like a proper event, and the result is verifiably random. Perfect for giveaways, raffles, and online contests where fairness and transparency matter.
Team assignments and pairing: Paste your team list and shuffle it to create random pairings, groups, or sequences. Use it to randomly assign pairs for code reviews, randomly order teams in a tournament bracket, or randomly assign study partners in a class.
Sprint planning and task assignment: Create a list of tasks for the upcoming sprint and shuffle it to create a random pick order. Team members pick tasks in the shuffled order, ensuring everyone gets a fair shot at the most interesting work — not just the people who speak first.
Decision-making under uncertainty: When you have five options and cannot rank them clearly, paste them in, shuffle, and commit to the first one that feels right when you see it. The random reveal activates your intuitive reaction — which often knows what you want before your analytical mind does.
Classroom and teaching tools: Paste student names, shuffle, and use the list as your calling order for the session. Every student gets called on exactly once before any student is called on twice. The process is visible, fair, and removes any suspicion of favoritism.
Meeting facilitation order: Randomize the speaking order for stand-ups, retrospectives, or presentations. The shuffled order is fair by construction and removes the implicit awkwardness of the facilitator deciding who goes first.
Why Shuffle vs. Pick a Winner?
The tool offers two modes: "Shuffle List" and "Pick a Winner." They serve different use cases. Shuffle List reorders your entire list randomly, which is useful when you need a complete random ordering — a presentation sequence, a task assignment list, or a speaking order. Every item gets a new position.
Pick a Winner selects a single item from your list with a dramatic reveal animation, which is ideal for giveaways, contest draws, or any situation where you need one result and want the selection to feel like an event. The animation creates a moment of genuine suspense that makes the result feel more significant — and more fair — than a simple text display.
Both modes use the same underlying Fisher-Yates algorithm. The mathematical guarantee of fairness is identical. The difference is purely in how results are presented and how many items are highlighted. Use Shuffle for full ordering, Pick a Winner for single selection.
Frequently Asked Questions
Is my list data private?
Yes. Your list is stored only in your browser's localStorage and is never transmitted to our servers. You can use the tool with sensitive information — employee names, confidential options — without any privacy risk.
How many items can I add?
There is no hard limit. The tool handles lists of hundreds of items without performance issues. Very large lists (1000+) may experience minor slowdown on older devices.
Does my list persist between sessions?
Yes. Your list is automatically saved to localStorage and will be there the next time you open the tool in the same browser. Use the Clear button to remove it.
Can I copy the shuffled result?
Yes. The Copy button in the result panel copies the full shuffled list to your clipboard, ready to paste into any other tool or document.
Is this tool free?
Completely free, with no account required and no usage limits.