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The beloved Cloudy Calculator Chrome extension is back — rebuilt from scratch to work entirely offline, with improved unit handling, better plural recognition, and fixes for mixed-unit arithmetic. This update preserves the original’s simplicity and power while modernizing its internals for accuracy and reliability. Whether you’re doing quick everyday calculations, converting obscure units, or running scientific computations or currency conversion, Cloudy Calculator delivers instant, accurate results with zero privacy trade-offs. About this Update • Based on the original Cloudy Calculator, now fully offline • 100% pass rate on all 423 comprehensive tests from comprehensive_tests.html • Enhanced unit parsing: recognizes plurals and aliases (liters, lbs, meters, hours, etc.) • No dependency on online services for math or conversions • Runs locally — no data ever leaves your browser Features • Mixed-unit math: 10 lb - 2 kg in g, 2 cups + 500 ml in liters • Unit conversions for length, area, volume, mass, time, speed • Temperature conversions: 32 F to C, 100 C to K • Number base conversions: binary, octal, hex, decimal • Math functions: sin, cos, log, sqrt, pow, factorial, • Constants: pi, e, c (speed of light), phi, • Plural & alias handling: litres, lbs, meters, minutes, • Currency conversions This version has been verified with the original 423-case comprehensive test suite, achieving a 100% success rate. Tests cover: • All supported units & aliases • Temperature & currency conversions • Mixed-unit arithmetic • Base number conversions • Math function evaluations • Constant resolution • Robust error handling for invalid inputs Privacy • No tracking • No telemetry • No analytics • All calculations happen entirely in your browser • No user data is ever stored or transmitted I typically aim to identify and fix issues within 24–48 hours while balancing school and other commitments. However, Google’s approval process can take 3–5 days and is outside my control. This is a free tool that I maintain in my own time, and I do my best to keep it reliable for everyone. If you prefer to use a different extension in the meantime, that’s completely understandable — you should use whatever works best for you. That said, I would ask you to keep in mind that reviews have a lasting impact, while bugs are usually temporary and already in the process of being fixed.
Calculator – History, Themes, Offline
A fast, intuitive calculator for everyday math — with history, keyboard support, themes, and offline mode. Calculator Extension for Chrome is a lightweight, high-performance tool designed for quick, accurate calculations—no sign-up, no clutter, and 100% free to use. Whether you’re crunching numbers for work or solving daily math problems, Calculator Extension delivers a smooth experience with essential operations, smart history tracking, and offline support. Customize your theme, switch between traditional or digital operator symbols, and enjoy full keyboard input support for faster workflows—right inside your browser. • Instant Calculations – Perform addition, subtraction, multiplication, division, percentage, and exponentiation with lightning speed and reliable accuracy. • Smart Input Handling – Automatically trims incomplete expressions (like trailing operators) and supports negative numbers and strict operator precedence. • History Tracking – View up to 100 past calculations and easily reuse any of them with a single click—no typing needed. • Keyboard Shortcuts – Enjoy a fully keyboard-accessible experience, from number input to deleting digits, clearing entries, and evaluating results. • Theme Switching – Toggle seamlessly between Light and Dark modes for comfortable viewing at any time. • Operator Style Options – Choose between familiar traditional math symbols (×, ÷, +, −) or clean digital operators (*, /, +, -). • Fully Offline – Use all features without an internet connection. Your calculations and history remain available anytime, anywhere. • Enter Your Expression – Type directly using your keyboard or click buttons to input numbers and operations. • Evaluate Instantly – Hit Enter or click '=' to compute the result. The calculator handles incomplete or malformed inputs gracefully. • Reuse Past Results – Open the history panel and quickly reload any previous calculation for editing and re-evaluation with a single click. ➤ Perfect For ✔ Everyday Math ✔ Quick Budgeting ✔ Office Work ✔ Students & Teachers ✔ Developers & Power Users ✔ Anyone who values speed and simplicity Q: What math operations are supported? A: The calculator handles addition (+), subtraction (−), multiplication (×), division (÷), percentage (%), and exponentiation (^), all with proper precedence rules. Q: Can I recall previous calculations? A: Yes! You can access up to 100 past entries in the History tab and reuse any of them instantly with a single click. Q: Does the calculator support parentheses? A: No. Parentheses are not currently supported. The calculator evaluates expressions based on standard operator precedence. Q: How do I change themes? A: Simply toggle the theme switcher to switch between Light and Dark modes. The interface updates instantly. Q: What are traditional vs digital operator symbols? A: Traditional symbols like (×, ÷, +, −) are visually standard in printed math. Digital symbols (*, /, +, -) are more common in programming. You can choose your preferred style in settings. Q: Can I use the calculator offline? A: Yes! This extension is fully offline-capable. All features—including history and theming—work without internet access. Q: Does it support keyboard input? A: Absolutely. You can use keyboard keys for all numbers, operators, and functions like clearing or deleting. Reach out to us at hello@ashimsaha.net for support, suggestions, or feedback.
NimbusCalc
A clean, modern reboot of Cloudy Calculator. Supports variables, history, dark mode, and more. NimbusCalc NimbusCalc is a modern reboot of the beloved Cloudy Calculator — a minimalist, text-based calculator that supports history, variables, multi-line evaluation, dark mode, and a customizable UI toggle. Features One-line and multi-line input modes Persistent variable and function definitions Scrollable history with click-to-reuse Keyboard recall with ↑ / ↓ System-aware dark mode Chrome shortcut key: Alt+C Clear all button to reset everything
Calculator for Chrome
A quick & easy calculator right on your browser. 1. Install the extension from Chrome Web Store, Pin 📌 it to make it easy to access. 2. Click on the mini calculator whenever you need mathematical help. 1. Keyboard accessibility to control the calculator 2. Supports both light and dark modes. 3. Works as an application and/or in browser. 4. Works offline too. 5. Scientific Calculator mode. This extension comes to the rescue with its simple design yet with advanced features.
JS Calculator
A versatile scientific calculator extension for Chrome powered by js libraries, inspired by Google Calculator & Cloudy Calculator. Unleash the power of advanced mathematics directly in your browser with JS Calculator! This versatile scientific calculator extension combines the robust numerical, matrix, and unit calculation capabilities of Math.js with the sophisticated symbolic computation engine of Nerdamer.js. Whether you're a student, engineer, scientist, or just need a powerful calculator on hand, JS Calc is designed for you. - Full Arithmetic Suite: Standard operators (+, -, *, /, ^, %), parentheses. - Numbers & Precision: Integers, decimals, scientific notation. Supports precise fractions with `fraction()`. - Complex Numbers: Seamlessly work with complex numbers (e.g., `(2+3i)^2`). - Matrices & Vectors: Create, manipulate, and perform operations like `det(A)`, `inv(M)`, `A*B`. - Extensive Unit Support: Calculate with diverse units (length, mass, time, energy, etc.) and convert effortlessly (e.g., `5 ft + 10 cm in meters`, `100 km/h to m/s`). - Rich Function Library: Trigonometric (`sin`, `cos`), logarithmic (`log`), exponential (`exp`), statistical (`mean`), probability (`factorial`), and many more. - Constants: Includes `pi`, `e`, `i`, and others. - Variable Assignment: Store results or values in variables (e.g., `x=5`, `rate=9.8`). - User-Defined Functions: Create reusable functions (e.g., `area(r) = pi*r^2`). - **Solve Equations:** - Single equations: `solve(x^2-4=0, x)` - Systems: `solveEquations([x+y=10, x-y=2], [x,y])` - Rearrange: `solveFor(E=m*c^2, m)` - **Calculus:** - Differentiation: `diff(sin(x^2), x)` - Integration (Indefinite & Definite): `integrate(exp(x), x)`, `defint(x^2, x, 0, 1)` - Limits: `limit(sin(x)/x, x, 0)` - Summation & Products: `sum(k, k, 1, n)` - **Algebra:** - Factoring: `factor(x^2-1)` - Expansion: `expand((a+b)^3)` - Partial Fractions: `partfrac(1/(x^2-1), x)` - GCD, LCM, Roots, Coefficients, Degree, Simplify, Complete the Square. - **Transforms:** - Laplace & Inverse Laplace: `laplace(exp(a*t), t, s)` - **Other Tools:** `isPrime()`, `numerator()`, `denominator()`. - Intuitive Interface: Clean layout, scrollable history, clear input. - Persistent State: Variables, user functions, and history are automatically saved. - **Interactive History:** - Click input to reuse. - Click result to insert. - Ctrl/Cmd+Click result to copy (with visual feedback!). - Command Navigation: Up/Down arrow keys for command recall. - Clear Function: Instantly reset the calculator. - Pop-out Window: Work in a separate, resizable window. - Customizable: Tailor fonts and pop-out dimensions via the Options page. - Helpful Documentation: Access comprehensive help directly. - Powerful & Versatile: Bridges simple calculators and complex CAS systems. - Convenient: Always accessible from your Chrome toolbar. - Offline Capable: Works entirely offline. - Open & Transparent: Built with well-regarded open-source libraries. Get ready to supercharge your mathematical tasks with JS Calc!
