Starlight Tools – Free browser-based calculators and converters

Summary: Starlight Tools provides over 300 free, private calculators, converters, and generators for images, documents, web development, science, and daily tasks. All tools run locally in the browser without uploads, ensuring speed and security.

What it does

It offers a collection of browser-based utilities including converters, scientific calculators, and educational games with printouts, operating entirely offline.

Who it's for

Users needing quick, private calculations and conversions without ads or signups, suitable for everyday and educational use.

Why it matters

It eliminates the need for cluttered websites or downloads by providing fast, lightweight, and secure tools running locally.