Blog
How SpinForFree actually works, and why it is built the way it is, for anyone who wants more than “trust me”.
Three claims hold the shared wheel up: the draw is decided in one place rather than in each viewer’s browser, it is written down before anyone can see it, and the odds you see on the wheel are the odds that were actually used. The early posts explain those mechanisms and where the guarantees stop; newer ones cover whatever we are building or fixing at the time.
August 12, 2026
Inside the Free Wheel
The wheel on the home page runs entirely in your browser, on purpose. What that buys you, what it costs, and the one bug we hit building it.
August 2, 2026
How the Live Spin Actually Works
What happens between pressing Spin and everyone watching land on the same name at the same instant.
August 2, 2026
Why Every Draw Gets Logged (And Why That Matters)
Most giveaway draws ask you to take the organiser's word for it. Here's what a real audit trail looks like instead.
August 2, 2026
Weighted Odds, Explained
How giving a name a bigger slice actually changes its odds, with a worked example.
Looking for something more practical?
The guides section covers actually setting up and running a wheel. Start with how to use the wheel, or how to run a raffle people trust if there is a prize involved.
For the mathematics rather than the architecture, how random number generators actually work covers pseudorandom versus cryptographic generators, modulo bias, and why a perfectly fair draw so reliably looks rigged.