6 tools

Everyday & Business

Quick calculators and generators for everyday and business tasks — passwords, QR codes, percentages, GPA, and more, in your browser.

Password Generator Generate strong, random passwords or memorable passphrases. Everything happens locally — nothing is sent anywhere. QR Code Generator Turn a link, WiFi network, contact card, or plain text into a downloadable QR code — as PNG or SVG, entirely in your browser. WiFi QR Code Generator Create a WiFi QR code from your network name and password so guests can join by scanning — free, no signup, generated in your browser. Percentage Calculator Calculate percentages, percentage increase or decrease, percentage change, and reverse percentages — instantly, entirely in your browser. GPA & Grade Calculator Calculate your weighted GPA from a list of courses, or find out exactly what score you need on a final exam. Salary Negotiation Calculator See exactly what a bigger raise or counter-offer is worth over your whole career — not just this year.

Free calculators and everyday tools

A collection of quick calculators and generators for the small tasks that come up at work and at home. Each one is focused, fast, and works without an account.

Generate a strong password or a scannable QR code, work out a percentage or a GPA, or see what a pay rise is really worth over a career. They all run in your browser, so your inputs stay on your device.

Frequently asked questions

Are these tools free?

Yes — every calculator and generator here is free, with no signup and no limits.

Is anything I enter uploaded or stored?

No. The tools run locally in your browser, so what you type — passwords, numbers, salaries — never leaves your device and is not logged.

Do they work on mobile?

Yes. Everything is designed to work in any modern mobile or desktop browser.