Question 1

What is URL encoding?

Accepted Answer

URL encoding converts characters into a format that can be transmitted over the Internet. Special characters are replaced with "%" followed by hexadecimal values.

Question 2

encodeURI vs encodeURIComponent?

Accepted Answer

encodeURI encodes a full URL (preserves :/? etc). encodeURIComponent encodes URL parameters (encodes everything except A-Z, 0-9, and -_.!~*'()). Use Component for query parameters.

Question 3

When should I use URL encoding?

Accepted Answer

Use it when adding user input to URLs, creating query strings, or when characters like spaces, ampersands, or special symbols appear in URLs.

Question 4

Is this tool free?

Accepted Answer

Yes! The TheToolzilla URL encoder/decoder is 100% free. All conversions happen in your browser.

URL Encode / Decode

Encoding Type

Frequently Asked Questions

What is URL encoding?

encodeURI vs encodeURIComponent?

When should I use URL encoding?

Is this tool free?

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