What does the URL Encode / Decode work out?

Percent-encode or decode a URL or parameter. It is one of the Everyday & Tech tools on Mondo Knows.

How is the URL Encode / Decode calculated?

You get an instant answer with the working shown underneath.

Do I need to sign up, and is my data stored?

No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

Mondo Knows Tools

URL Encode / Decode

Percent-encode or decode a URL or parameter. Use the free url encode / decode below to get an instant answer, with the formula shown so you can check the maths and trust the result. Free, private, and no sign-up.

Mode

Text

Mondo says

Result

hello%20world%20%26%20more

Characters26

URL Encode / Decode: common questions

What does the URL Encode / Decode work out?: Percent-encode or decode a URL or parameter. It is one of the Everyday & Tech tools on Mondo Knows.
How is the URL Encode / Decode calculated?: You get an instant answer with the working shown underneath.
Do I need to sign up, and is my data stored?: No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

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Facts that connect to the url encode / decode

Short, sourced facts that point back to this tool.

The first website went live in 1991Tim Berners-Lee published the world's first web page at CERN to explain the World Wide Web project HTTP status code 404 designates a page that cannot be found on a serverThe 400 series indicates client error status codes within the Hypertext Transfer Protocol standard

Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.