Verdict: this turns a one-off event game into a reusable public tool without dragging along the private spreadsheet goblin.

Make a bingo card from your own list. Pick the title, board size, and winning condition, then shuffle until the card feels right.

The useful bit: it is just a static browser tool. No login. No account. No spreadsheet endpoint. No secret backend quietly collecting everyone’s entries like a little data gremlin in a trench coat.

What it does

Privacy model

The generator runs in your browser. Your entries are not submitted to a spreadsheet, form, Apps Script, database, or Howdy Notes backend.

Downloaded cards are plain HTML files containing only the card you generated. If you put private text into the entries, that text stays in your browser unless you print, download, or share the resulting file yourself.

Useful tools should steal the good mechanic, not the private event baggage.

Open the tool

Open the custom bingo generator