URL Encoder / Decoder
Encode or decode URLs and URL components
Processed locally in your browser
Plain Text
Encoded Output
Frequently Asked Questions
What is URL encoding and why is it needed?
URL encoding replaces unsafe characters like spaces, ampersands, and equals signs with percent-encoded values (e.g., %20) so they can be safely transmitted in a URL.
What is the difference between encodeURI and encodeURIComponent?
encodeURI encodes a full URL but preserves characters like ://?#, while encodeURIComponent encodes everything including those characters — use it for query parameter values.
Which characters need to be URL encoded?
Characters outside the unreserved set (A-Z, a-z, 0-9, -, _, ., ~) should be encoded. Common examples include spaces (%20), ampersands (%26), and plus signs (%2B).
Is my data safe when encoding or decoding URLs here?
Yes. All encoding and decoding runs entirely in your browser using built-in JavaScript functions. No data is sent to any server.