URL Encode

URL encoding converts special characters into percent-encoded values so URLs can be transmitted safely. It is commonly used for query parameters, form data, and API requests.

URL encoding, also called percent-encoding, replaces reserved or unsafe characters with a "%" followed by two hexadecimal digits, such as space becoming %20. This keeps URLs valid and unambiguous.

Use encoding when you are building a query string or passing values to an API endpoint.

Use the encoder with these steps:

1. Paste text or a query parameter value into the input editor.
2. Click "URL Encode".
3. Copy the encoded output on the right.

URL encoding is useful when you need to:

• Build valid query strings for links and APIs.
• Safely include special characters like spaces, &, or #.
• Normalize values before logging or storing URLs.

Certain characters should be encoded in URLs to avoid ambiguity. Examples include:

References for percent-encoding and URL syntax:

• W3Schools: URL Encoding Reference
• MDN Web Docs: Percent-Encoding
• Wikipedia: Percent-Encoding

• Encode query parameter values, not the full URL, to keep ?, =, and & readable.
• Encode path segments separately and keep / between segments.
• Use UTF-8 input for accented characters and emoji before encoding.
• Decode once when troubleshooting logs to avoid double-encoding.
• When a value already contains %, confirm it is not already encoded.

If a link still breaks, compare the raw and encoded values side by side to confirm which characters changed.