Master URL encoding in JavaScript. Understand the difference between encodeURI(), encodeURIComponent(), decodeURI(), and decodeURIComponent() with practical examples.
Master URL encoding in API development. Learn how to safely encode query parameters, handle authentication tokens, build API clients, and avoid common encoding pitfalls.
Complete reference table of URL-encoded special characters. Find the percent-encoded value for any character, from spaces and punctuation to Unicode and emoji.
Learn how Unicode characters and international text are handled in URLs. Understand UTF-8 byte encoding, IDN/Punycode for domain names, and multilingual best practices.
Learn what URL encoding (percent-encoding) is, why it exists, and how it transforms special characters into a safe format for use in web addresses.
Encode and decode URLs instantly — supports encodeURIComponent, encodeURI, path encoding, and batch processing.
Open URL Encoder