🪙 Coin Flip Random Generator
3D Flip • Series Tosses • History • Statistics • Fairness Check
Explanation (brief but useful)
This coin flip generator is built so that you can use it without Elementor Pro, without additional plugins, and without external dependencies. Simply copy the complete block into an Elementor HTML widget and immediately get an interactive "Coin Flip" box with 3D animation, statistics, and history. The added value: You can pull more than just one "Heads or Tails" result; you can also perform series tosses (e.g., 10 or 100), which allows decisions like "Best of 3", "Who starts?" or small games (e.g., Heads = Team A, Tails = Team B) to be handled cleanly. Additionally, the generator saves the total statistics locally in the browser (LocalStorage). This means: When you reload the page, the Heads/Tails counts and the best streak are preserved – as long as you don't click "Reset" or clear your browser cache.
For the source of randomness, the code uses – if available – crypto.getRandomValues, which provides cryptographically stronger randomness from the browser. If a very old browser does not support this, there is a fallback to Math.random. The generator transparently displays which source was used and adds a timestamp to the last toss. The bars in the statistics visualize the distribution, allowing you to see at a glance whether you are currently in a Heads or Tails phase. "Streak" means: How many times in a row the same result appeared (current) and what the longest series was.
Design Note: Everything is encapsulated in the container #coinflip-pro so that your WordPress theme
doesn't "break the styling" and vice versa. The animation also respects prefers-reduced-motion:
Users who prefer reduced motion will see a smoother or immediate result. If you want to customize the layout,
change the CSS variables at the top (e.g., size, shadows, or font). You can also rename the text
"HEADS/TAILS" to "YES/NO" or "TEAM A/TEAM B" without affecting the random logic.
FAQ
Is this really "random" and fair?
Yes, as far as it is reasonably possible in a browser. By default, crypto.getRandomValues is used, which is considered very reliable for random numbers on the web. The generator decides only between two outcomes (0/1) per toss. Small series (e.g., five times Heads) sometimes seem "unfair" but are mathematically normal. The distribution typically approaches 50/50 only after many tosses.
Why is my statistics preserved after a reload?
Because the values are saved locally in the browser (LocalStorage). This is practical if visitors return later or if you use the page frequently yourself. No data is sent to a server. Clicking "Reset" deletes everything immediately. If you don't want any storage, you can remove the LocalStorage lines in the JavaScript – the display will still function.
Can I insert multiple generators on one page?
Yes, but you should change the ID coinflip-pro per instance (e.g., coinflip-pro-2)
and adjust the CSS/JS accordingly; otherwise, the elements will interfere with each other. For a
single, powerful box, the current version is ideal. If needed, I can create a multi-instance version for you.
How does the "Series Toss" work (e.g., 100 tosses)?
The generator internally creates N independent tosses, counts Heads/Tails for that series, and updates the total statistics afterward. The large coin shows the result of the last toss of the series as a "show effect". This provides speed (even with 500 tosses) while maintaining a nice animation.
Why is there a sound toggle?
Some users like a short "Click/Pling" as feedback. The sound is generated here without audio files (WebAudio Beep). It is off by default so that the page remains quiet and doesn't annoy mobile users. If you prefer a real coin sound file instead of a beep, it can be added later.
Embed this Calculator on Your Website
You can integrate this calculator for free into your own website. Get the embed code on our overview page.