
Bingo Maker
Build custom bingo cards for parties, meetings, or class.
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Snowball
Watch the demo before you click
See how small, steady savings compound into something big.
Snowball is an offline compound-interest projector that turns a starting amount, monthly contribution, expected return and time horizon into your projected balance, the interest you'll earn, and a live year-by-year growth chart splitting what you put in from what compounding adds. Slide any assumption or tap a quick-start goal and the projection re-draws instantly. Built end-to-end with AI, it runs entirely in your browser with no login, and the whole single-file source is downloadable to self-host or remix.
Generated launch trailer
AIBuilt generated this launch kit automatically from /apps/snowball. No uploads, no editing — point us at the build and ship.
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Get the code
This launch ships its complete source as one self-contained HTML file. No build step, no backend, no strings attached.
Download
Single-file source — MIT licensed.
Download source (.html)Self-host
Remix with AI
Paste it into Claude, ChatGPT or Cursor together with the downloaded file.
Related launches
Watch the demo before you click.
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Build custom bingo cards for parties, meetings, or class.

One-click project timers with a week view and billable totals.

Live character, word & token counts with platform limit bars.

Every race weekend — F1, NASCAR, IndyCar, MotoGP — in one place.