URL Encode / Decode

Percent-encode or decode query strings and fragments correctly.

How to use this tool

Paste the URL or text.
Choose encode or decode, and whether to treat it as a full URL or a component.
Copy the result.

How it works

encodeURIComponent/decodeURIComponent handle reserved characters; a URL-mode option preserves structural characters like / : ?.

Tips

Encoding the full URL encodes the slashes — use URL mode when the input is an address.
Decode before analyzing query params for readable keys.

Limitations

Spaces encoded as '+' only apply to query components.

Frequently asked questions

What does percent-encoding do?

It replaces unsafe characters with %XX hex codes so text survives URLs, query strings and HTML attributes.

Which spaces: + or %20?

Both are common — + traditionally meant space in the query string; %20 works everywhere. The tool lets you choose.

When would I decode?

When inspecting query strings in analytics or debugging links that show %-codes.