flipj is built for the moments when a group needs to decide something and everyone needs to trust the answer. Our live rooms let a whole group spin, vote or flip together in real time; our giveaway picker produces public certificates anyone can verify; our stream wheel lets Twitch chat run the wheel; and the party pack gets any group talking. We also make quick random tools: coins, dice, wheels, pickers and generators.
How giveaway draws stay fair
Draws are decided by the drand public randomness beacon, using a round published after the entrants are locked in. The algorithm is public in /fair.js and anyone can re-run a draw from its certificate page.
How we make results random
Every result comes from your browser's cryptographically secure random number generator (crypto.getRandomValues). We use rejection sampling so that every outcome has exactly the same chance, and the Fisher–Yates method to shuffle lists, decks and teams.
Private by design
Tools run entirely on your device. The lists you type are saved only in your own browser so they're there next time, and are never sent to us.
Free to use
flipj is free and supported by advertising. If something isn't working or you'd like a new tool, get in touch.