URL Decoder & Online Percent Decoding Tool

Our URL decoder reverses percent-encoding to reveal the original human-readable text hidden within encoded URLs, an essential capability for debugging web applications and analyzing incoming traffic. When examining server access logs filled with percent-encoded request paths, this decoder instantly translates the cryptic sequences back to the actual resource names and search terms that users typed. Digital marketers analyzing referral traffic decode the full URL parameters passed from advertising platforms to verify that campaign tracking variables, source identifiers, and content tags transmit correctly through the marketing funnel. Security analysts investigating potential cross-site scripting or SQL injection attacks decode suspicious URLs to reveal payloads that attackers attempted to disguise through encoding, enabling faster threat identification and response. Affiliate marketers auditing commission attribution decode the click URLs from their partner networks to verify that transaction IDs and publisher references survive all redirect hops between the initial click and the final purchase page. Developers troubleshooting internationalization issues decode URLs containing non-Latin characters to verify that UTF-8 byte sequences correctly represent Chinese, Arabic, or Cyrillic text throughout the encoding and decoding pipeline. The decoder processes all input directly in your browser using JavaScript, ensuring that URLs you examine remain private and never get transmitted to any external server. Simply paste any percent-encoded URL or string into the input field and the decoded version appears instantly, with all hexadecimal escape sequences converted back to their original characters. Use this decoding tool for log analysis, marketing attribution verification, security investigation, internationalization debugging, and all situations where encoded URLs must become human-readable.