URL Encode / Decode

Encode and decode URLs side by side.

How URL encoding works

Characters that have special meaning in URLs (such as & = ? / and spaces) are replaced with % followed by their UTF-8 bytes in hex, e.g. a space becomes %20. Decoding reverses it.

"Component" mode (encodeURIComponent) escapes everything except letters, digits and - _ . ! ~ * ' ( ). "Full URL" mode (encodeURI) keeps URL structure characters like : / ? #. "Form" mode writes spaces as +.

Processed locally in your browser — your input is never uploaded.

What is URL Encode / Decode?

Encode and decode URLs side by side. Characters that have special meaning in URLs (such as & = ? / and spaces) are replaced with % followed by their UTF-8 bytes in hex, e.g. a space becomes %20. Decoding reverses it.

Is URL Encode / Decode free to use?

Yes. URL Encode / Decode on DevCipher is completely free, with no sign-up, no limits and no ads.

Is my data safe when I use URL Encode / Decode?

Yes. Everything runs locally in your browser. Your input is never uploaded to a server, and sensitive values such as keys and tokens are never saved.