About Percent Encoder

Percent Encoder is a free online tool for one of the web's most common small jobs: turning ordinary text into percent-encoded, URL-safe strings — and turning them back again. It exists because encoding a query value should take seconds, not a trip through a cluttered page full of ads and sign-up forms.

What We Believe

Good tools stay out of the way. That belief shapes every decision on this site: the encoder is the first thing you see, results appear as you type, and there are no accounts, no downloads, and no usage limits. If a feature doesn't make the core task faster, it doesn't ship.

Private by Design

Every conversion on this site happens locally in your browser using standard, RFC 3986 compliant JavaScript functions. The text you paste is never transmitted to a server, never stored, and never logged. Once the page has loaded, the tool works even if you go offline — which is exactly how a utility like this should behave.

Accurate and Standards-Based

The tool mirrors the behavior of encodeURIComponent() and encodeURI(), the same functions your own code uses, with full UTF-8 support for emoji and every world language. What you see here is what your application will produce, so you can trust the output during real debugging work.

Built for Developers, Marketers, and the Curious

Whether you are assembling query strings, untangling a broken redirect, localizing a link, or auditing URLs for SEO, Percent Encoder is here to make that one step effortless. Bookmark it, and get on with the rest of your work.