URL Encoder/Decoder

URL Encoder/Decoder is a free online tool for converting special characters in URLs to percent-encoding format for safe transmission over the internet, or decoding encoded URLs back to readable format. URL encoding is essential because URLs can only contain certain ASCII characters—spaces, special symbols, and non-ASCII characters must be encoded using percent notation (e.g., space becomes %20). This tool provides instant bidirectional conversion using JavaScript's built-in encodeURIComponent and decodeURIComponent functions, which follow the RFC 3986 standard for URL encoding. Simply switch between encode and decode modes, paste your URL or text, and get immediate results. Web developers commonly use URL encoding when building query strings with user input, creating shareable URLs with special characters, debugging API endpoint URLs, and ensuring form data transmits correctly through GET requests. The tool is also useful for decoding cryptic encoded URLs you encounter to understand their actual content, such as tracking URLs or redirects with encoded parameters. All processing happens entirely client-side in your browser, ensuring privacy and security. The tool handles international characters (UTF-8) correctly, works offline once loaded, and requires no installation or account creation.