QuickCalc

**QuickCalc** is a lightweight Chrome extension that provides a fast, keyboard-first calculator directly within the browser. The extension allows users to evaluate mathematical expressions without leaving their current tab. It supports standard arithmetic operations, parentheses, percentages, and order of operations. Calculations can be entered directly using the keyboard, with results displayed instantly. In addition to basic calculations, the extension includes: * Calculation history with persistent local storage * One-click result copying * Memory functions (MC, MR, M+, M-) * Light, dark, and system themes * Optional on-screen keypad * A command palette for quickly accessing built-in tools * Additional productivity tools including a discount calculator, EMI/loan calculator, unit converter, and date calculator All user data, including history, settings, and memory values, is stored locally in the browser. The extension does not require users to create an account and does not transmit calculation data to external servers. The primary goal of QuickCalc is to help users perform everyday calculations quickly while working in the browser, minimizing context switching and improving productivity.