Question 1

What is URL encoding?

Accepted Answer

URL encoding (percent-encoding) converts special characters into a format that can be safely transmitted in a URL. For example, a space becomes %20.

Question 2

When do I need URL encoding?

Accepted Answer

URL encoding is needed when passing special characters in query parameters, form data, or any URL component. Characters like &, =, ?, and spaces must be encoded.

Question 3

What is the difference between encodeURI and encodeURIComponent?

Accepted Answer

encodeURI encodes a full URI but preserves characters like :, /, and ?. encodeURIComponent encodes everything except unreserved characters. This tool uses encodeURIComponent for maximum safety.

Question 4

Is my data safe?

Accepted Answer

Yes. All encoding and decoding happens in your browser. Your data is never sent to any server.

Question 5

Can I decode any URL-encoded string?

Accepted Answer

Yes, as long as the percent-encoded sequences are valid. If the input contains malformed sequences, the tool will display an error.

URL Encoder/Decoder

URL Encoder/Decoder