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URL Encode / Decode

Encode or decode URL strings.

URL encode / decode

Component encoding escapes :/?#&= too — use it for query-string values.

Output

hello%20world%20%26%20foo%3Dbar
Size change
+10 chars
21 → 31
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URL Encode / Decode · Generated 5/2/2026 · calccenter.online/calculators/other/url-encode

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About the URL Encode / Decode

MethodologyHome

Encode or decode URL strings. Use this free url encode / decode to get instant results. All calculations run in your browser — nothing is sent to a server.

Frequently asked questions

What does this URL Encode / Decode do?

Encode or decode URL strings.

Is it free?

Yes — every calculator on Calc Center is free, with no sign-up or account required.

Does it work offline?

The site is a Progressive Web App — after your first visit, most pages work without an internet connection.