URL Encoder/Decoder

URL encoding is essential for web development and API integration. Web developers use it for handling URLs with special characters and parameters. API developers use it for encoding request parameters and data. Security professionals use it for analyzing and testing URL vulnerabilities. Content managers use it for creating clean, web-safe URLs. Our encoder supports both URL encoding and Base64 encoding with bidirectional conversion, making it perfect for web development, API integration, security testing, and data transmission.

URL Encoding: Converts unsafe characters to %XX format where XX is hexadecimal. Reserved Characters: ; / ? : @ & = + $ , #. Unreserved Characters: Letters, numbers, - _ . ~. Space: Either %20 or + depending on context. UTF-8: Non-ASCII characters encoded as multiple bytes. Essential for web URLs to ensure safe transmission and proper interpretation by browsers and servers.

Email Attachments: MIME encoding for binary files. Data URLs: Embed images in HTML/CSS. API Authentication: Basic Auth uses Base64. Cookies: Encode special characters in cookie values. File Uploads: Encode binary data for text-based protocols. Each application leverages Base64's ability to safely transmit binary data in text-only environments.

Not Encryption: Both URL and Base64 are encoding, not encryption. Data Exposure: Encoded data can be easily decoded. XSS Prevention: Proper encoding prevents XSS attacks. SQL Injection: Parameter encoding helps prevent injection attacks. Validation: Always validate and sanitize input before encoding. Use HTTPS for secure transmission of sensitive data, even when encoded.