Tools Guide

The exact character and word limits for Google, X, LinkedIn, essays and emails — plus how reading time works and the best free word counters compared.

Static vs dynamic codes, the expiry trap in “free” generators, design rules that double scan rates, and how to make a print-ready QR code in ten seconds.

How passwords get cracked, what entropy really means, the best generators compared, and the 5-minute routine that makes your accounts effectively unhackable.

Forms rejecting your photo? Learn why exact image size matters, how compression works, the best tools compared, and how to hit any KB target in under a minute.