Example
ReferenceLoad a sample list and settings.
Input
one
two
threeInput
0 characters · 0 lines
Output
Output will appear here.
Tool options
Examples
🔒 Processed locally in your browser
Chain with…
These tools accept list output. Run this tool to enable one-click hand-off.
List
About Create a Symmetric List
Create a Symmetric List is a List tool that takes list input and returns list output. It runs entirely in your browser, so your input never leaves your device.
- Input
- list input
- Output
- list output
- Where it runs
- In your browser
- Chainable
- Yes
- Options
- 1 configurable
- Examples
- 1 in the catalog
Benefits
- Processed locally in your browser
- Accepts pasted text
- Input can come straight from your clipboard
- Download the result as a file
- Chain the output directly into another tool
Step by step
How to use Create a Symmetric List
5 steps, all from the panel above — nothing leaves your browser.
Paste your input
Type or paste your list into the input panel above — it keeps a running character and line count as you type.
Set the options
Adjust the 1 tool option — Keep the centre item once.
Run the tool
Run it — the work happens in your browser, so nothing is uploaded.
Collect the result
The result appears in the output panel as list output. From there you can download it as a file.
Chain it onward
The chain panel lists tools that accept this output; sending the result opens the next tool with its input already filled in.
Formats
Supported formats
What Create a Symmetric List accepts and what it hands back.
Accepts
Pasted list content; no file upload is involved.
Produces
Returned as list output; no specific file format is declared for it. From the output panel you can download it as a file.
Configuration
Keep the centre item once
boolean · default true
Examples
Examples and use cases
1 catalog example for Create a Symmetric List. Runnable examples can be loaded from the examples panel above.
Related tools
Sort a List
Sort list items alphabetically, numerically, or by length, with duplicate and whitespace handling.
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Reverse a List
Reverse the order of list items, one per line.
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Find Unique List Items
Find items that appear exactly once in a list.
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Find Duplicate List Items
Find items that appear more than once, optionally with counts.
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Find the Length of a List
Count total, unique, and duplicate items in a list.
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Randomize a List
Shuffle list items into a random order.
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FAQ
Frequently asked questions
Answers for Create a Symmetric List, taken from the tool's own catalog definition.
Does Create a Symmetric List run in my browser or on a server?
It runs entirely in your browser — the work happens on your device.
What input does Create a Symmetric List accept?
list input.
What do I get back, and what can I do with it?
The result is list output. From the output panel you can download it as a file.
Can I chain Create a Symmetric List into another tool?
Yes. After a run, the chain panel lists tools that accept list output (12 compatible tools in the catalog right now) and hands the result across with one click.
Does Create a Symmetric List need any configuration?
Yes — the tool options panel above exposes 1 setting: Keep the centre item once.
Do I need an account?
No. Accounts only add conveniences: favourites, recent-tool history and saved workflows.
What is included with Create a Symmetric List?
Processed locally in your browser; Accepts pasted text; Input can come straight from your clipboard; Download the result as a file; Chain the output directly into another tool.
Get started
Start using Create a Symmetric List
The tool is ready above — add your list and run it. It all happens in your browser, so nothing is uploaded.