Results Log
| Flip # | Result | Time | Actions |
|---|---|---|---|
| No results yet. Press Space or click to flip! | |||
Keyboard Shortcuts
Flip a Coin - Heads or Tails
Flip a coin and get instant results! Our online heads or tails coin toss app allows up to 1k simultaneous flips with visually dynamic animations.
Coin Flipper Overview
Experience the ultimate free online coin flipper for heads or tails decisions. Our virtual coin toss simulator delivers realistic 3D animations and physics-based bounces, allowing you to flip up to 1,000 coins simultaneously on desktop or mobile—no downloads, ads, or signups required. Perfect for games, decision-making, classrooms, and probability demonstrations, all flip history is stored locally for fast performance and total privacy.
- 100% free with absolutely no ads and unlimited use.
- Flip anywhere from 1 - 1,000 coins at once.
- Choose from different coin sets and sizes.
- Track and view all of your coin flip results in real-time with timestamps.
- Advanced statistics including longest streaks, standard deviation, and deviation from expected outcomes.
- Export your flip results as CSV or TXT files for record keeping and analysis.
- Undo last flip or delete individual flips from history.
- Keyboard shortcuts: Press Space to flip, Ctrl+U to undo, Ctrl+Shift+C to clear all.
- Weighted flips for educational demonstrations of probability (adjustable 0-100%).
- Set flip goals and track your progress towards completion.
- Educational tooltips explaining Law of Large Numbers, Gambler's Fallacy, and probability concepts.
- Realistic coin flip animation for a fun and interactive experience.
- Results are saved in your browser for easy access. You can come back to the page and see your results without losing them.
Understanding Probability & Coin Flips
Use our coin flipper as an educational tool to explore fundamental concepts in probability theory and statistics.
Law of Large Numbers
As you flip more coins, the actual percentage of heads and tails will converge closer to the theoretical probability of 50% each.
Try it: Flip 10 coins, then 100, then 1,000. Notice how the percentages get closer to 50/50 with larger sample sizes.
Gambler's Fallacy
Each coin flip is completely independent of previous flips. Past results have zero influence on future outcomes.
Important: Even after 10 heads in a row, the next flip still has exactly 50% chance of being heads or tails.
Expected vs. Actual
With a fair coin, we expect 50% heads over many flips. Small deviations are normal, especially with smaller sample sizes.
Fun fact: With 100 flips, getting 45-55 heads is common. Getting exactly 50 is actually less likely than you'd think!
Standard Deviation
Standard deviation measures the amount of variation in your flip results. A lower value means results are closer to the expected average.
Formula: For coin flips, standard deviation = √(p × (1-p) / n), where p = 0.5 and n = number of flips.
Streaks & Patterns
Long streaks of heads or tails can occur naturally in random sequences. Humans often underestimate how "clumpy" true randomness can be.
Did you know? In 100 flips, a streak of 5-7 of the same result is not unusual and doesn't indicate the coin is unfair.
Weighted Probability
Our flipper allows you to adjust the probability (0-100%) to demonstrate non-fair coins and explore how changing odds affects outcomes.
Educational use: Set heads to 70% and flip 100 times. You'll see approximately 70 heads and 30 tails, demonstrating weighted probability.
Why Study Probability with Coin Flips?
📊 For Students & Teachers
Perfect for classroom demonstrations of probability theory, statistics, and the scientific method. Track real data and compare with theoretical predictions.
🎲 For Researchers & Analysts
Generate random binary outcomes for simulations, hypothesis testing, and Monte Carlo experiments. Export results for further analysis.
🧠 For Critical Thinking
Understand common cognitive biases like the gambler's fallacy and hot-hand fallacy. Learn to distinguish between randomness and patterns.
📈 For Data Science
Explore concepts like sampling distributions, confidence intervals, and hypothesis testing using a simple, intuitive binary outcome.
Coin Flipper FAQs
How many coins can I flip at once?
You can flip anywhere from 1 to 1,000 coins at once. The coin flip animation takes between 1.5 and 3.5 seconds, with each coin finishing at slightly different intervals for realism.
Is the coin flipper truly random?
Yes, we use your browser’s built‑in `Math.random()` to simulate unbiased flips: heads for values < 0.5, tails for ≥ 0.5.
Can I customize the coin set and size?
Absolutely! Choose from multiple coin designs and sizes (small, medium, large) to suit your preference.
Can I see my coin toss history?
Yes, all flip results are recorded in real time in the results log, showing each flip number and outcome.
Is the coin flipper free to use?
Yes, it’s 100% free with no ads or limits on the number of flips. Enjoy unlimited flips anytime!
Can I use the virtual coin flipper on my mobile device?
Yes, our coin flipper is fully responsive and works seamlessly on smartphones and tablets. Flip coins on the go with the same realistic animations and instant results.
Are my coin flip results and history private and secure?
Absolutely. We store your flip history locally in your browser for performance and privacy. No personal data is collected or shared, ensuring your results remain confidential.
Can I share or bookmark my coin flip results?
You can easily copy or screenshot your results log to share with friends. While we don't store results on a server, you can export the list manually for your records.
Which browsers and platforms are supported by the coin flipper?
Our coin flipper is compatible with all modern browsers (Chrome, Firefox, Safari, Edge) on desktop and mobile. No plugins are required—just open the page and start flipping.