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URL Encoder

Percent-encode special characters so query strings and path segments work correctly in URLs.

Switch to Decoder

Encode special characters in URLs and text strings using percent-encoding (also known as URL encoding). This process converts characters that have special meaning in URLs or aren't allowed in certain contexts into percent-encoded sequences. Essential for web development, API integration, and ensuring data is transmitted safely in HTTP requests.

What is URL Encoder?

URL encoding, also called percent-encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI). Certain characters like spaces, ampersands, and non-ASCII characters must be encoded to be safely transmitted in URLs. The encoding replaces these characters with a percent sign (%) followed by two hexadecimal digits representing the character's ASCII code.

Common Use Cases

  • Encoding query parameters in API requests to prevent parsing errors
  • Preparing form data for URL submission
  • Encoding special characters in file paths for web servers
  • Creating shareable links with special characters
  • Encoding user input before including it in URLs
  • Preparing data for HTTP GET requests with query strings
  • Encoding international characters (UTF-8) in URLs

How It Works

The URL encoder scans your input text and identifies characters that need encoding according to RFC 3986 standards. Reserved characters (like &, =, ?, #) and unsafe characters (like spaces, non-ASCII) are converted to their percent-encoded form. For example, a space becomes %20, and an ampersand becomes %26. The tool handles UTF-8 encoding for international characters, ensuring proper encoding for all Unicode characters.

Examples

Encoding a query parameter with spaces

Input:
search query=hello world
Output:
search%20query%3Dhello%20world

Encoding special characters

Input:
file name & data.txt
Output:
file%20name%20%26%20data.txt

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