About This Tool
Encode special characters in URLs to their percent-encoded equivalents, or decode percent-encoded strings back to readable text. Essential for building API query strings, debugging URL parameters, and working with web requests.
Free Tool
URL Encoder / Decoder
Encode or decode URLs and query strings online. Convert special characters to percent-encoded format or decode them back to readable text.
Frequently Asked Questions
URL encoding replaces unsafe characters with a percent sign followed by two hex digits (e.g., space becomes %20). This ensures URLs are transmitted correctly over the internet.
Encode any string used as a URL parameter value, especially if it contains spaces, ampersands, question marks, or non-ASCII characters.
Both. You can encode individual parameter values or paste a full URL. Use encodeURIComponent mode for parameter values and encodeURI mode for full URLs.
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