Luminus Tools

What is Luminus Tools?

Luminus Tools is a browser-based suite of calculators and web utilities that runs entirely on your device. It includes financial planners, health trackers, developer tools, image utilities, and more, all built to work without accounts or uploads. Calculations stay client-side, so your data does not leave your browser and can even work offline. The product also includes Echo, an assistant that explains results in plain English and gives useful context for numbers. Everything is free to use, with ads helping support the service.

Key features

• Runs calculations fully client-side in your browser.
• Offers 300+ tools across finance, health, and development.
• Keeps your data private with no uploads or tracking.
• Works offline after loading in the browser.
• Echo explains results in clear, plain English.