📚 The Blog
Guides, tips and how-tos for getting the most out of free online tools.
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.
MD5 for checksums, SHA-256 for integrity, bcrypt for passwords — the three hashes developers confuse, what each is for, and when each is dangerous.
What #7C5CFF, rgb(124,92,255) and hsl(252,100%,68%) really mean — the three ways to write a color, when to use each, and a free converter.
Single or double spaced, 11pt or 12pt — how word counts map to pages for essays, novels and reports, with a free words-to-pages converter.
A 50% markup is not a 50% margin — confusing the two is why some businesses lose money on every sale. The difference, the formulas, and free calculators.