What is the difference between encodeURI and encodeURIComponent?

encodeURI keeps URL structure intact (://, /, ?). encodeURIComponent encodes everything — use it for individual query parameter values.

Is my data sent to a server?

No — encoding and decoding happen entirely in your browser.

エンコード or decode URL strings and query parameters instantly. 無料, private, in-browser.

Input text or URL