Fake Data for Testing — What's Safe, What's Not
Why you should never use real personal data in test environments, which fake data formats are safe to use, and how to generate plausible test data.
·6 min read·🏠 Fake Address Generator
Blog
Randomness, security, probability, and practical how-tos.
How to Generate a Strong Password in 2026
Length beats complexity every time. Learn why entropy matters more than special characters, what mistakes most people still make, and how to generate passwords that actually hold up.
·5 min read·🔐 Password Generator
How to Pick a Random Winner Fairly (For Giveaways)
Why spreadsheet RAND() is biased, how to run a fair random drawing, legal requirements for sweepstakes, and how to document the process for transparency.
·6 min read·🔀 List Shuffler
Probability Basics — Coin Flips, Dice, and Fairness
Uniform randomness, the law of large numbers, the gambler's fallacy, and how to actually test whether a die is fair using a chi-square test.
·6 min read·🪙 Coin Flip
Rolling Dice for TTRPGs — d20, Advantage, and DC Math
The actual probability math behind d20 rolls, advantage/disadvantage, difficulty classes, and common dice distributions in tabletop RPGs.
·6 min read·🎲 Dice Roller
Why Math.random() Isn't Random Enough for Security
How JavaScript's Math.random() works under the hood, why its output is predictable, and when you need crypto.getRandomValues() instead.
·5 min read·🔐 Password Generator
WiFi Password Best Practices for Guest Networks
Your guest network is the front door to your home WiFi. Learn how to set one up properly, pick the right encryption, choose a strong password, and share it with a QR code instead of spelling it out.
·6 min read·📶 WiFi Password Generator