What each tool does
Password Generator
A strong password is long, random and unique to each account. NIST guidance favours length over complexity rules and recommends at least 15 characters for passwords used alone. A random 16-character password from upper and lower case letters, numbers and symbols has about 100 bits of entropy, far beyond brute-force reach.
QR Code Generator
A static QR code stores the link or text inside the pattern itself, so it never expires and needs no account. A Wi-Fi QR code uses the format WIFI:T:WPA;S:network;P:password;; which phone cameras on iOS and Android read to join the network. Print codes at least 2 cm wide with dark modules on a light background.
Random Number Generator
Set the lowest and highest number and how many you need, then press Generate. Each number in the range has an equal chance. Turn off repeats to get unique numbers, as in a lottery draw. The tool uses the Web Crypto API, which produces unbiased randomness suitable for giveaways.