URL Encoder & Decoder
Safely escape links for data transmission, or decode messy percentage-encoded query strings.
About the URL Encoder Tool
Web browsers and HTTP requests can only transmit a specific set of safe ASCII characters. If your data contains spaces, symbols, or special characters (like ?, &, or =) inside a query string, the URL will break. The OnlinePaste.com URL Encoder safely replaces these unsafe characters with their corresponding "%" hex equivalents (percent-encoding).
Strict vs Loose Encoding
We offer two parsing engines. Parameters (Strict) uses encodeURIComponent, which escapes almost everything, ensuring a string is safe to be passed inside a URL parameter (like a redirect link). Whole URL (Loose) uses encodeURI, which ignores functional characters like http:// and /, allowing you to encode a full, functioning hyperlink.
100% Client-Side Processing
Marketers and developers frequently decode URLs to extract sensitive tracking tokens, email parameters, or proprietary API keys. Our engine executes natively inside your browser. Your URLs and query strings are never uploaded, saved, or transmitted to our servers.