Example
ReferenceLoad a sample list and settings.
Input
1
2
3Input
0 characters · 0 lines
Output
Output will appear here.
Tool options
Examples
🔒 Processed locally in your browser
Chain with…
These tools accept text output. Run this tool to enable one-click hand-off.
List
About Reduce List
Reduce List is a List tool that takes list input and returns text output. It runs entirely in your browser, so your input never leaves your device.
- Input
- list input
- Output
- text output
- Where it runs
- In your browser
- Chainable
- Yes
- Options
- 2 configurable
- Examples
- 1 in the catalog
Benefits
- Processed locally in your browser
- Accepts pasted text
- Input can come straight from your clipboard
- Copy the result with one click
- Download the result as a file
- Chain the output directly into another tool
Step by step
How to use Reduce 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 2 tool options — Operation, Join separator.
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 text output. From there you can copy it with one click, 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 Reduce List accepts and what it hands back.
Accepts
Pasted list content; no file upload is involved.
Produces
Returned as text output; no specific file format is declared for it. From the output panel you can copy it with one click, download it as a file.
Configuration
Operation
select · default join
Join separator
text · default ,
Examples
Examples and use cases
1 catalog example for Reduce List. Runnable examples can be loaded from the examples panel above.
Related tools
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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 Reduce List, taken from the tool's own catalog definition.
Does Reduce List run in my browser or on a server?
It runs entirely in your browser — the work happens on your device.
What input does Reduce List accept?
list input.
What do I get back, and what can I do with it?
The result is text output. From the output panel you can copy it with one click, download it as a file.
Can I chain Reduce List into another tool?
Yes. After a run, the chain panel lists tools that accept text output (12 compatible tools in the catalog right now) and hands the result across with one click.
Does Reduce List need any configuration?
Yes — the tool options panel above exposes 2 settings: Operation, Join separator.
Do I need an account?
No. Accounts only add conveniences: favourites, recent-tool history and saved workflows.
What is included with Reduce List?
Processed locally in your browser; Accepts pasted text; Input can come straight from your clipboard; Copy the result with one click; Download the result as a file; Chain the output directly into another tool.
Get started
Start using Reduce List
The tool is ready above — add your list and run it. It all happens in your browser, so nothing is uploaded.