Flip a fair virtual coin that lands on heads or tails with equal probability using Math.random() in your browser. No data leaves your device.
When to use it
- Break ties in casual games
- Demonstrate binary random outcomes in classrooms
- Quick decision prompts when both options are acceptable
Limitations
Not cryptographically secure—do not use for gambling or security. Each flip is independent; past results do not affect the next flip.
Fairness note
Outcomes are pseudo-random; for audited draws use a certified random source instead of a browser toy.
Example
For example, enter the default sample values on the form and compare the output with a known reference; adjust one input at a time to see how the result changes.
Notes
This guide summarizes the behavior of the random/coin flip tool on Tool Plaza. Processing runs locally in your browser unless the tool explicitly calls a server action.