Free Online Utility Tools

Utility tools cover general-purpose converters and generators that don't fit neatly into other categories: QR code generators and scanners, password generators, timezone converters, unit converters (length, weight, temperature), lorem ipsum generators, and more. These are the tools you reach for when you need a quick QR code for a Wi-Fi network, a cryptographically random password, or a unit conversion for a recipe. All tools run in your browser, so generated passwords, QR code contents, and other data never leave your device. Common use cases: generate a QR code for a URL or contact card and download it as PNG or SVG for print. Create a secure random password with custom length and character sets using the Web Crypto API for strong randomness. Convert times across timezones for scheduling international meetings. Convert between metric and imperial units (kilometers to miles, kilograms to pounds, Celsius to Fahrenheit). Generate placeholder text for mockups. Tools in this category are fast, private, and require no account. Because processing is local, you can use them offline (after libraries cache) and iterate without network round-trips. Ideal for developers, designers, writers, and anyone who needs quick conversions and generators without installing desktop software.