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URL Encoder & Decoder
Encode a string so it can be safely transmitted in a URL.
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What is the URL Encoder & Decoder?
The URL Encoder & Decoder transforms special characters, spaces, and symbols into percent-encoded URI strings (e.g. %20 for space) and decodes percent sequences back into readable text.
Who is the URL Encoder & Decoder for?
Built for web developers, API engineers, and web scrapers constructing query strings.
How to Use the URL Encoder & Decoder
- Select Encode or Decode mode.
- Paste text or URL query string.
- Copy encoded URI string.
Worked Example
Encoding 'hello world & good day' converts to 'hello%20world%20%26%20good%20day'.
Frequently Asked Questions
Why do URLs need percent-encoding?
URLs can only contain valid ASCII characters. Unsafe characters like spaces, ampersands, or question marks must be percent-encoded to prevent parsing errors.
Why encode URLs?
URLs can only be sent over the Internet using the ASCII character-set. Encoding converts unsafe ASCII characters into a '%' followed by two hexadecimal digits.