Multiply Integers

Multiply Integers is a simple browser tool that multiplies each number in your list by a value you choose. Whether you want to double, halve, negate, or scale a batch of integers, this tool handles it instantly right in your browser. Just paste your numbers, enter a multiplier, and get live results as you go.

It supports filters, duplicate removal, file import/export, and output maximization all with zero setup.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total items: 0
Options
Ignore non-integers
Remove duplicates
Maximize output

How to Use:

  • Paste your numbers into the input box, one per line
  • Or use Choose File to import a plain-text file like .txt, .csv, or .json
  • Enter your multiplier in the Multiply by box (e.g. 2, -1, 0.5)
  • Use the Options toggles to adjust:
    • Ignore non-integers – skips invalid lines automatically
    • Remove duplicates – prevents repeated output values
    • Maximize output – expands the output area for larger results
  • Output updates instantly as you type or change settings
  • Click Convert to manually trigger recalculation if needed
  • Use Copy Output to copy results, or Export to File to save them
  • Click Clear All to reset everything

What Multiply Integers can do:

Need to scale values fast? Multiply Integers is a quick solution for anyone working with numeric data. Whether you’re transforming CSV values, doubling IDs, flipping signs, or generating test data, this tool handles it cleanly and live. You control the multiplier and the filtering behavior the output updates with every change.

It’s great for developers, students, spreadsheet users, or anyone cleaning up or reworking integer lists on the fly.

Example:

Input:

2
5
-3
0
100

Multiply by: 3

Output:

6
15
-9
0
300

Common Use Cases:

Multiply Integers is perfect for transforming values across a dataset think: doubling results, creating scaled versions of test numbers, flipping values for simulations, or processing bulk data from a file. It’s fast, private, and requires no install just paste, multiply, and go.

Useful Tools & Suggestions:

After using Multiply Integers, try Add Integers to compare the difference in how your data behaves additively vs multiplicatively. And if you’re working with long chains of numbers, Find the Running Product gives you a step-by-step breakdown along the way.

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