Combinations & Permutations
nCr, nPr, and factorial.
Combinations & Permutations is a free, browser-based tool on Toolery. nCr, nPr, and factorial. Everything runs locally on your device, so it's fast and completely private — no uploads, no queues, and no sign-up to try it.
Combinations & Permutations — FAQ
Is Combinations & Permutations free to use?
Yes. Combinations & Permutations is completely free on Toolery — no watermarks and no sign-up required to try it.
Is Combinations & Permutations private — do my files stay on my device?
Yes. Combinations & Permutations runs entirely in your browser. Your files and input are processed on your own device and never uploaded to a server, so nothing is stored, seen, or shared.
How do I use Combinations & Permutations?
nCr, nPr, and factorial. Open the tool, add your file or input, and get the result instantly — it all happens on your device.
Is Combinations & Permutations accurate, and is my input private?
Yes on both. Combinations & Permutations computes results instantly in your browser using standard formulas, and nothing you enter is stored or sent anywhere.