URL Encoding: Understanding Percent Encoding

URL encoding, also known as percent encoding, is essential for web development and API integration. This article explains when and why URLs need to be encoded, common encoding scenarios, reserved characters, and how to properly encode and decode URLs.

URL encoding converts special characters into percent-encoded format, ensuring URLs are valid and safe for transmission. Characters like spaces, ampersands, and special symbols must be encoded to prevent errors and security issues.

Understanding URL encoding is crucial for handling user input, building API requests, creating dynamic URLs, and ensuring proper data transmission. Modern programming languages provide built-in functions for URL encoding and decoding.