Create & Print Custom Bingo Cards Generate random bingo cards with custom text or traditional numbers. Print-ready cards for any occasion.

The tool's core functionality relies on React state management, specifically the `useState` hook to store variables such as mode, custom items, card count, and generated cards. It utilizes the `useCallback` hook to memoize functions like `generateClassic` and `generateCustom`, which are triggered when the user clicks the "Generate Bingo Cards" button. In traditional mode, it employs a column-based random selection algorithm to populate the 5x5 grid, with each column having a predefined range of numbers. The Fisher-Yates shuffle algorithm is used in custom mode to randomize the order of words across 24 non-free cells.

When generating classic bingo cards, the tool iterates through each card and column, using `Math.random` to select a number within the specified range for that column. It ensures uniqueness by checking if the selected number already exists in the array. The center cell is always set to "FREE". For custom mode, it splits the input string into an array of words, trims and filters out empty strings, then uses the Fisher-Yates shuffle algorithm to randomize their order. This shuffled array is then used to populate the bingo card cells.

The tool's UI components are built using React functional components, with JSX syntax for templating. It utilizes CSS classes like `glass-card` and `glass-button` for styling, and applies dynamic class names based on state variables like mode. The generated cards are stored in a state array and rendered as a grid of div elements, with each cell containing the corresponding number or word. The tool also uses HTML input elements like textareas and number inputs to collect user input, such as custom words and card count.