URL Encoder & Decoder
Encode URL components or full URLs, decode percent-encoded text and copy clean results without sending input to a server.
How to encode and decode URLs
Paste a URL, query value or other text, choose URL component or Full URL mode, then select Encode or Decode. The result is produced locally in your browser.
URL component encoding vs full URL encoding
Use component mode for individual values such as a search query or parameter. Full URL mode uses the URI encoding rules that preserve URL separators while escaping characters that should not appear literally.
Why percent encoding matters
URLs have reserved characters with structural meanings. Percent encoding lets data contain characters that would otherwise be interpreted as separators or invalid URL characters.
Common URL encoding mistakes
- Encoding an entire URL when only a query value needed encoding.
- Decoding text that is not actually percent-encoded.
- Confusing spaces represented as
%20with form-style+handling. - Double-encoding an already encoded value.
Privacy and browser processing
The encoder and decoder process the text locally in this implementation. The input does not need to be uploaded to a NeroTool processing server.
Frequently asked questions
What does URL encoding do?
URL encoding represents characters that have special meanings in URLs using percent-encoded sequences, making text safer to place in a URL component.
Should I encode a full URL or a query parameter?
Use component encoding for individual query values or fragments. Full-URL encoding is different because separators such as /, ? and & may need to remain meaningful.
Can I decode percent-encoded text?
Yes. Paste percent-encoded text and choose Decode to convert valid escape sequences back to their characters.
Is my URL uploaded?
The encoder and decoder process the text in your browser in this implementation. The input does not need to be uploaded to a NeroTool processing server.