Free Online Randomizers

LK Forge Randomizers make the unbiased pick for you: flip a coin, roll dice or generate random numbers in a click — cryptographically fair, no ads, no sign-up, all in your browser.

Free

Coin Flip

Flip a fair coin for heads or tails, or a quick yes/no. Flip one with an animation or a hundred at once, with a running tally and custom labels.

Open tool Free

Dice Roller

Roll one or many dice — d4, d6, d8, d10, d12, d20 or d100 — with modifiers and a total. Real pips for six-sided dice, perfect for board games and tabletop RPGs.

Open tool Free

Random Number Generator

Generate random numbers in any range, one or many at a time. No-duplicates mode for raffles and winner picks, plus sorting and one-click copy.

Open tool Free

Spin the Wheel

Build a custom wheel of names or choices and spin for a random winner — great for classrooms, giveaways and picking who goes first.

Open tool

Fair by design

Every draw uses the browser's cryptographic random source — not Math.random().

1

Cryptographic randomness

Each tool draws from crypto.getRandomValues, the Web Crypto API browsers use for security keys — far stronger and less predictable than the ordinary Math.random() behind most simple online randomizers.

2

No hidden bias

The dice roller and number generator use rejection sampling to throw away the sliver of raw values that would otherwise skew the odds, so every face and every number in range is equally likely.

3

Private and offline

Nothing is uploaded — the result is generated on your device — and each tool keeps working with no connection once the page has loaded. Want a visual draw instead? Try the Spin the Wheel.

Frequently Asked Questions

What is a randomizer?
A randomizer is a tool that makes an unbiased random choice for you — flipping a coin between two options, rolling one or more dice, or generating random numbers in a range. LK Forge Randomizers is a free suite: a Coin Flip for yes/no and heads-or-tails decisions, a Dice Roller for board games and tabletop RPGs (d4 through d100), and a Random Number Generator for draws, raffles and picking winners. Each runs entirely in your browser with no account, no ads and no limit, and keeps working offline once the page has loaded.
Are these randomizers really random?
These randomizers use the Web Crypto API (crypto.getRandomValues), the same cryptographically secure random source browsers use for security keys, rather than the ordinary Math.random() that most simple online tools rely on. To keep the odds perfectly even, the dice roller and number generator use rejection sampling, which discards the small range of raw values that would otherwise make some outcomes very slightly more likely. The result is a fair, unpredictable draw with no detectable bias — every coin side, die face and number in range has an equal chance.
Do I need to install anything or sign up?
No — the LK Forge randomizers need no install and no sign-up. Every tool is a plain web page that runs instantly in any modern browser on phone, tablet or computer. There is no app to install, no account to create and no payment. Nothing you do is uploaded — the coin flips, dice rolls and numbers are generated on your own device — and because there is no network call, the tools keep working even if you go offline after the page has loaded.
Can I use these for a giveaway or classroom draw?
Yes — these randomizers are built for a giveaway or a classroom draw. The Random Number Generator has a no-duplicates mode that is ideal for picking raffle or giveaway winners, drawing lottery-style numbers, or assigning an order without repeats — set the range to the number of entries and turn off duplicates. The Coin Flip settles two-way decisions and the Dice Roller works for classroom games and turn order. Because the draw is cryptographically fair and happens in front of you, it is easy to run a transparent, unbiased selection.