To use Open Spin Wheel for a raffle: 1) Enter all participant names or entries into the text area (one per line). 2) Share the wheel link with participants for transparency. 3) Click Spin to randomly select a winner. 4) The result popup shows the winner — you can remove them and spin again for multiple winners. 5) Use the export feature to save the results history. For legal compliance, make sure to publish clear rules and include a no-purchase-necessary clause.