Web Runs in your browser

HTML Preview

Preview a small HTML fragment in an isolated local frame while checking structure, text, and basic styling.

Input

Fields are ready to edit and update the result automatically.

Live

Ready.

Results update as you edit.

Keep exploring

Encode query values and URL fragments safely for links, APIs, and browser requests.

Decode percent-encoded URLs and query values into text that is easier to inspect.

Escape text for safe placement inside HTML attributes and content.

From the guide archive