About Tooldeb

Tooldeb is a growing collection of free, fast, no-signup online tools and calculators. Everything runs in your browser — enter your numbers and get an answer instantly, with no account and nothing to install.

We started with niche engineering calculators for hardware and embedded work, where good, no-nonsense tools are hard to find, and we're steadily adding everyday utilities alongside them.

The calculators are provided for reference and convenience. Always verify results against authoritative sources before relying on them for production or safety-critical work.

Questions or a tool request? Get in touch.