Free URL Encoder & Decoder

What is URL Encoding?

URL Encoding (also known as Percent-Encoding) is a mechanism for safely encoding information in a Uniform Resource Identifier (URI). URLs can only be sent over the Internet using the ASCII character-set.

• Why Encode? Since URLs often contain characters outside the ASCII set (like spaces, emojis, or foreign languages), the URL has to be converted. URL encoding replaces unsafe ASCII characters with a % followed by two hexadecimal digits. For example, a space becomes %20.
• Strict Parameter Encoding: By default, our tool uses encodeURIComponent(). This is the safest way to encode data that you are appending to a URL (e.g., ?name=value). It converts characters like &, =, and ? so they don't break the URL string.
• Whole URL Encoding: If you uncheck the strict option, the tool uses encodeURI(). This will encode special characters but leave structural characters (like http://, ?, and /) intact, ensuring the full link still works.
• 100% Client-Side Processing: All parsing and decoding is handled natively within your browser. This ensures maximum security for your API endpoints and private parameters.