About WebUtils Pro

Our mission

Most online utility sites force your files through their servers: uploads, queues, watermarks, and privacy policies that quietly permit retention. WebUtils Pro takes the opposite approach — every tool on this site runs entirely in your browser using standard web APIs. Your PDFs, text, and lookups are processed by your own device and never transmitted to us, because there is no “us” in the pipeline at all.

Our editorial standard is publish the logic. Each of our 47 tools documents exactly how it works — the formula, the API, or the algorithm — alongside honest limitations, because a tool you can't inspect is a tool you can't trust.

How the tools work

• PDF operations use pdf-lib and PDF.js — battle-tested open-source libraries that parse and write PDFs client-side.
• Network lookups (DNS, whois, IP) query public standards-based services (DNS-over-HTTPS, RDAP) directly from your browser.
• Cryptography tools use crypto-js and the browser's native crypto API.

The few external services we query are the same public infrastructure your operating system uses (Google Public DNS, RDAP registries, and an open relay for fetching pages you explicitly ask us to inspect). See our Privacy Policy for details.

How we're funded

Advertising keeps the site free. Ad slots are reserved and labeled so they never shift layout or interfere with tools, and we never accept payment to alter a tool's output.