📚 The Blog
Guides, tips and how-tos for getting the most out of free online tools.
What contrast ratio means, the AA and AAA thresholds, and how to fix unreadable text — with a free WCAG contrast checker.
Turn a calorie target into grams of protein, carbs and fat for your goal — the simple method, common splits, and a free calculator.
The number of business days in 2026, why it changes, and how to count working days between any two dates — with a free business days calculator.
Estimate body fat with just a tape measure using the US Navy formula — how to measure correctly and what the numbers mean.
Why February sometimes has 29 days, the exact divisible-by-4-except-100-but-yes-400 rule, and how to check any year — with a free checker.
camelCase, snake_case, kebab-case, PascalCase and CONSTANT_CASE — what each is, where it's used, and a free converter.
What each field in a cron schedule means, common examples decoded, and a free tool that explains any expression in plain English.
Make balanced, unbiased teams for class, sports or game night in seconds — paste names and let a free random team generator do the shuffling.
Run a fair giveaway draw your audience will trust — how to pick a random winner, avoid bias, and handle ties, with a free random picker.
The difference between tints, shades and tones, and how to turn one brand color into a full, usable scale — with a free generator.
Why your calendar week number sometimes surprises you, how ISO-8601 defines week 1, and how to find the week number for any date.
Beat decision fatigue with chance — when to use a coin flip, a yes/no wheel, a random picker or dice, and why randomness is sometimes the smart choice.