Top 18 open-source products relevant to Calculators

Numi is a beautiful text calculator for Mac.

Open Source

Qalculate! is a multiplatform multi-purpose desktop calculator.

Open Source

A simple, immediate and fast unit converter!

Open Source

Extendable calculator for the 21st century ⚡.

Open Source

An all-in-one unit converter in 6 languages.

Open Source

PowerTOP is a Linux tool to diagnose issues with power consumption and power management.

Open Source

High precision scientific calculator with full support for physical units.

Open Source

An elegant calculator for the web.

Open Source

Introducing Fossify Calculator – your versatile and efficient tool for all your calculation needs.

Open Source

Free42, an HP-42S calculator simulator.

Open Source

A web-based text editor with a powerful built-in calculator.

Open Source

Math.js is an extensive math library for JavaScript and Node.js.

Open Source

Discover everything you need to know about the TI-84 calculator, features, tips, and more.

Open Source free

Calculate your tip based on the server's gender.

Open Source

Kalker is a calculator that supports user-defined variables, functions, ambiguous syntax, differentiation and integration. It runs on Windows, macOS, Linux, Android, and in web browsers (with WebAssembly).

Open Source

Free-Calculator.org offers fast, accurate, and free online calculators for finance, health, math, and more — everything you need in one simple hub.

Open Source

Calculate any square root with the Racine Carree Calculator—positive, negative, or decimal. Fast, accurate, mobile-friendly, and 100% free to use.

Open Source

Use our free Australian GST Calculator to add or remove GST fast. 100% accurate, ATO-compliant, and designed for businesses & individuals.

Open Source free