Fun & Math Tools

What Each Tool Does

Every tool below opens instantly, needs no account, and processes your data locally in your browser. Here is what each one is for:

Dice Roller

Roll any combination of dice — d4 through d100 — with animated results and totals, for board games and RPGs. Open the Dice Roller →

Coin Flip

A fair heads-or-tails flip with a satisfying animation — the classic decision maker. Open the Coin Flip →

Prime Checker

Check whether a number is prime and see its factors — instant answers even for large numbers. Open the Prime Checker →

Password Strength

Estimate how strong a password really is — entropy, crack-time estimates and concrete improvement tips, computed locally. Open the Password Strength →

CSS Gradient

Build linear and radial CSS gradients visually and copy the exact CSS — no more guessing color stops. Open the CSS Gradient →

Box Shadow

Design CSS box shadows with live preview sliders and copy production-ready code. Open the Box Shadow →

Regex Tester

Test regular expressions against sample text with live match highlighting and group inspection. Open the Regex Tester →

Abjad Calculator

Calculate the traditional abjad numeric value of Arabic words and phrases, letter by letter. Open the Abjad Calculator →

Pi Digits

Compute exact digits of pi with a client-side spigot algorithm, up to 2,000 digits, with a one-click copy button. Open the Pi Digits →

Number Sum

Add up any list of numbers instantly, with count and average shown alongside the total. Open the Number Sum →

LCM Calculator

Find the least common multiple of two or more integers, with the GCD and calculation method shown too. Open the LCM Calculator →

Number to Words

Spell out any whole number, negative or into the trillions, in properly hyphenated English words. Open the Number to Words →

Divisors Finder

List every divisor of a number and see whether it's prime, perfect, abundant or deficient. Open the Divisors Finder →

Matrix Multiply

Multiply two matrices of any compatible size, entered as plain text, with clear dimension-error messages. Open the Matrix Multiply →

Matrix Determinant

Compute the exact determinant of a square matrix up to 9×9 using recursive cofactor expansion. Open the Matrix Determinant →

Number Sorter

Sort a list of numbers ascending or descending by true numeric value, decimals and negatives included. Open the Number Sorter →

Max Finder

Find the largest number in a list along with its position, without opening a spreadsheet. Open the Max Finder →

Min Finder

Find the smallest number in a list along with its position, without opening a spreadsheet. Open the Min Finder →

How to Choose the Right Tool

Need a fair random outcome? The Dice Roller throws any number and kind of dice, and Coin Flip settles yes/no questions. The Prime Number Checker factors and verifies numbers instantly, and the Abjad Calculator computes the traditional numeric value of Arabic text. For security hygiene, the Password Strength Checker estimates how long a password would survive cracking — locally, so it's safe to test real candidates. Designers get two visual builders: the CSS Gradient generator and Box Shadow generator both output copy-ready CSS. And the Regex Tester highlights matches live as you type patterns against sample text.

Frequently Asked Questions

Are the dice rolls and coin flips truly random?

They use your browser's cryptographic random number generator, which is as fair as physical dice for any practical purpose.

Is it safe to test my real password in the strength checker?

Yes — the check runs locally and the password is never transmitted. Still, never type your password into sites you don't trust.

Which regex flavor does the tester use?

JavaScript regular expressions, as implemented by your browser — including flags like g, i, m and s.

What is an abjad calculator?

It computes the traditional numeric values assigned to Arabic letters (abjad numerals) for a word or phrase — used in classical texts, poetry and numerology.

Explore More WiserWork Categories

WiserWork offers 423 free browser-based tools across 26 categories — all private, all free, no sign-up required.