All Tools VerseReduce List Online
Reduce a list to a single value by joining, counting, summing, multiplying, or finding the min or max.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Processed locally in your browser. Your text never leaves this tab.
How to Use Reduce List Online
- Paste your list. One item per line. For maths, use numbers.
- Choose an operation. Join into one line, count the items, or for numbers compute the sum, product, minimum, or maximum.
- Reduce it. The whole list collapses into a single value.
- Copy the result. Click Copy result. It all runs in your browser.
Frequently Asked Questions
What operations are available?
Join all items into one line, count the items, or, for lists of numbers, the sum, product, smallest, or largest value.
What happens with non-numbers in a maths operation?
Lines that are not numbers are ignored for sum, product, minimum, and maximum, so a stray label will not break the calculation.
Does it ignore blank lines?
Yes. Empty lines are skipped, so they do not affect the count or the maths.
What does Join do?
It puts every item on a single line separated by spaces, which is handy for turning a column into one string.
Is my list uploaded?
No. The calculation runs in your browser and your list never leaves the tab.
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