About ToolNimbus

ToolNimbus is a growing collection of free online tools for everyday tasks and everyday people — calculators, converters, formatters, and validators that just work. No accounts, no paywalls, no clutter.

What we believe

A good tool should be instant, private, and free. Most of our tools run entirely in your browser, which means your input — the text you paste, the numbers you enter, the images you convert — never leaves your device. There is nothing to install and nothing to sign up for.

What you will find

• Calculators — age, percentage, dates, time, discounts, and more.
• Converters — images, units, temperature, and data sizes.
• Formatters & validators — JSON, Base64, and text tools.

We add new tools regularly. You can browse every tool here.

Why ToolNimbus

The name says it: a nimbus is a cloud, and our tools live in the cloud — open a page and start working in seconds, on any device. We focus on speed, accuracy, and a clean, distraction-free experience.

Get in touch

Have a tool you would like us to build, or found something that could be better? We would love to hear from you on our contact page.