Recurring tasks
Typical tasks here include generating QR code, converting kilometers to miles, converting Celsius to Fahrenheit and calculating compound interest.
Carregando ferramenta… / Loading tool…
Conversions, generators and cross-cutting calculators.
The tools most people look for first.
58 of 58 tools
Create and read QR codes, UUIDs, nicknames, fancy letters, emojis and speech.
Clock, stopwatch, timer, time zones and Unix timestamps.
Microphone tuner and white, pink and brown noise for focus and sleep.
Units, bill splitting with tip and exact age.
Periodic table, NATO alphabet, Braille, semaphore, Q and 10 codes, resistors and hazmat.
Test your webcam, microphone, keyboard, mouse, gamepad, touchscreen and sensors.
Ruler, magnifier, mirror, compass, level, angle, height, GPS and vibration.
This category groups tools that are useful for different audiences: QR code generator, unit converter, compound interest calculator and other everyday routines.
It is a versatile category because it gathers workflows used by consumers, professionals, creators, analysts and operational teams.
Typical tasks here include generating QR code, converting kilometers to miles, converting Celsius to Fahrenheit and calculating compound interest.
In simple utility tools, extra context matters: explaining the formula, use case and tool limits helps people understand the result better and avoid rushed interpretation.
The QR code itself does not expire: it is just an image encoding a fixed text or link, and it stays readable forever. What can expire is the content it points to, a link that goes down, a removed file or an ended promotion. For content that changes, point the QR at a stable URL you control.