Free Online URL Encoder & Decoder Tool

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What is URL Encoding?

URL encoding (also called percent-encoding) converts characters into a format that can be safely transmitted over the Internet. Special characters like spaces, &, ?, and non-ASCII characters are replaced with a '%' followed by their hexadecimal value.

How to Use URL Encoder/Decoder

Paste your text or URL-encoded string in the input area
Click 'Encode' to convert text to URL-safe format
Click 'Decode' to convert URL-encoded string back to text
Copy the result using the Copy button

URL Encoder/Decoder Features

Encode text for safe URL transmission
Decode URL-encoded strings to readable text
Full Unicode support (Chinese, emoji, etc.)
Instant conversion
Works entirely in your browser

URL Encode/Decode FAQ

Why do URLs need encoding?

URLs can only contain a limited set of ASCII characters. Special characters, spaces, and non-ASCII characters must be encoded to be transmitted safely in URLs.

What characters need to be encoded?

Characters like space ( ), ampersand (&), question mark (?), equals (=), and all non-ASCII characters (like Chinese or emoji) need to be encoded.

What's the difference between URL encoding and Base64?

URL encoding converts individual special characters to %XX format, while Base64 encodes entire data streams. URL encoding is for URLs; Base64 is for binary data in text contexts.