🔗URL Encoder🔒 100% local

Percent-encodes the text you paste by running encodeURIComponent across the entire string. Every character outside the unreserved set is replaced with its UTF-8 byte escapes, which means the scheme separator, slashes, question mark, ampersand and equals signs are all escaped along with spaces and non-ASCII letters. Because it is a pure string function, the URL never leaves the page.

How to use it

1. Paste the value you want encoded into the URL to Encode box.
2. Press Encode.
3. Copy Output gives you the escaped string ready to drop into a query parameter or a header value.

Worked example

When to use it

• You are building a query string by hand and a value contains spaces, & or = that would otherwise break the parameter list.
• A callback or redirect URL has to travel as a parameter inside another URL, so the whole inner URL must be escaped.
• You need to see exactly which bytes a value will occupy on the wire when you suspect a non-ASCII character is causing a mismatch.

What it does not do

• Because the whole string is treated as one component, the output is not a usable URL: the colons and slashes are gone, so pasting the result into a browser address bar does nothing useful. If you want to keep the scheme and path readable and escape only the query values, encode the values separately instead.
• There is no encodeURI-style mode that leaves :/?#&= alone, and no character allowlist to keep a particular symbol unescaped.
• Letters, digits and the four characters A-Z a-z 0-9 - _ . ! ~ * ' ( ) pass through unchanged, which can surprise you if you expected a fully escaped string.
• It escapes rather than sanitises: a value containing a newline or a double quote is encoded, not rejected, so do not treat the output as proof that an input is safe.