Random & Fun
Flip a coin
Flip a coin. The last twenty results are kept so you can see the run — which is mostly useful for demonstrating that runs happen.
Press the button to start.
A fair coin has no memory. A run of six heads does not make tails any likelier on the seventh.
- Runs in your browser
- No account required
- Free to use
How it works
Even odds, every time
A single bit from the cryptographic random source. There is no weighting, no memory and no adjustment based on what came before.
A run of heads means nothing
The coin has no memory, so six heads does not make tails likelier on the seventh — that expectation is the gambler’s fallacy. The recent results are shown precisely because seeing a run of five happen naturally is the clearest way to understand that.
What it does
A short history
The last twenty flips, with a running count of each side.
Instant
No animation to wait through.
Runs in your browser
No account and no upload — what you type is never sent anywhere. Analytics records that the tool was opened, never what you put into it.
Practical advice
Getting a better result
- In twenty flips, a run of four or five of the same side is more likely than not. It is not a sign of a broken coin.
- For anything with more than two outcomes, the dice roller or the wheel spinner is the tool.
Questions
Things people ask
Is it really 50/50?
Yes. Each flip is one bit from the browser’s cryptographic random generator, with no weighting and no dependence on previous flips. A real coin is slightly biased by its physical asymmetry; this one is not.
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Open toolWho builds these
Free tools by day. Websites that earn their keep by trade.
KuConvert is built by KUDUY, a web design and development agency. From custom WordPress builds to SEO and e-commerce, everything they do is engineered to bring you more qualified traffic and turn it into revenue.
Web Design
Custom, conversion-focused web design that captivates visitors and turns them into paying customers. Mobile-first, fast, and built to rank.
Web Development
Custom WordPress websites built with clean code, blazing-fast performance (Core Web Vitals optimised), and enterprise-grade security.
E-Commerce
Online stores that convert visitors to customers with seamless shopping experiences.
SEO
Technical SEO, keyword research, on-page optimisation and local SEO strategies that drive qualified organic traffic.
Digital Marketing
Data-driven campaigns that deliver measurable ROI across every channel.
Branding
Memorable brand identities that stand out in any market and build lasting trust.
Website Help
One-on-one expert support for bug fixes, updates and ongoing maintenance — without a long-term retainer.
Fixed scope, no surprise invoices
Most sites ship in four to eight weeks with the scope and the price agreed up front.
SEO from day one
Search is designed into the build — structure, schema and Core Web Vitals — not retrofitted.
A team, not a ticket queue
A project manager, a designer and a developer you can actually reach.
Need your whole site to load this fast?
Images are usually the heaviest thing on a page and the easiest win. KUDUY works on site speed, image delivery and Core Web Vitals for teams who would rather not do it by hand.
This tool runs entirely in your browser. Your files are never uploaded.