🧹
Text Cleaner
Remove extra spaces, line breaks, and formatting
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🔗URL Encoder/Decoder
Encode and decode URL parameters
Input
Provide text, data, or settings for this tool.
Output
Processed result appears here.
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Open ToolWhat is a URL Encoder/Decoder?
A URL encoder converts characters that are not allowed in URLs (like spaces, &, ?, #, and non-ASCII characters) into their percent-encoded equivalents (e.g., space → %20, & → %26). A URL decoder reverses this, converting %XX codes back to their original characters for human-readable display.
Why Use Utilo's URL Encoder/Decoder?
Encode URLs so they transmit safely over HTTP
Decode percent-encoded URLs to readable text
Encode individual query parameter values for API calls
Handles all ASCII and Unicode characters correctly
Instant results — no server request needed
Free and unlimited, no account required
Frequently Asked Questions
Encode URLs when they contain spaces or special characters that would break the URL structure. This is especially important for query parameter values, which may contain &, =, ?, #, and other reserved characters.
Any character that is not a letter (A-Z, a-z), digit (0-9), or one of - _ . ~ is percent-encoded. Reserved characters like &, =, ?, #, / are also encoded when they appear inside a query value.
No. URL encoding (percent encoding) replaces special characters with %XX hexadecimal codes. Base64 encoding converts binary data to a text string using a 64-character alphabet. They serve very different purposes.
Typically, only query parameter values need encoding — not the base URL or path. Encoding the full URL including slashes will break it.
encodeURI encodes a full URL and leaves reserved characters (like &, =, /, ?) intact. encodeURIComponent encodes everything including reserved characters and is used for individual parameter values.