Are these unit converters really free?
Yes — all tools on UtilDen are 100% free, no credit card, no signup.
Does my data stay private?
Every tool runs inside your browser. Nothing is sent to our servers.
Can I use these tools on mobile?
Absolutely. UtilDen is fully responsive and works great on phones and tablets.
How often are new tools added?
We ship new tools regularly. Bookmark the site or check back often.