Question 1

How do I use this tool?

Accepted Answer

Paste text, click Encode for percent-encoding or Decode to restore, then copy or clear as needed.

Question 2

What is URL encoding?

Accepted Answer

Unsafe characters are replaced with % followed by two hex digits per UTF-8 byte so values can travel safely inside URL components.

Question 3

Which characters need encoding?

Accepted Answer

Reserved characters, spaces, symbols like &=?#, and non-ASCII text often need encoding depending on where the string is used.

Question 4

Why encode URLs?

Accepted Answer

It reduces parser ambiguity, supports international text, follows RFC 3986 practice, and improves interoperability.

Question 5

Which API does the tool use?

Accepted Answer

Encode applies encodeURIComponent to the whole input. Decode tries decodeURIComponent first, then decodeURI as a fallback.

Question 6

Can I process large text?

Accepted Answer

Yes. Paste multi-line snippets, convert in one step, and copy the output.