URL Encode/Decode

This tool encodes and decodes URLs using percent-encoding (URL encoding). This is essential for safely transmitting data containing special characters within URLs.

How to Use

  1. Enter the text you want to encode or decode in the input field.
  2. Select "Encode" or "Decode" from the dropdown menu.
  3. Click the "Convert" button to see the result.
  4. Optionally, click "Copy to Clipboard" to copy the result.
  5. Use the "Clear" button to reset the input and output fields.

Encode/Decode URL

Result

About URL Encoding and Decoding

What is URL Encoding (Percent-Encoding)?

URL encoding, also known as percent-encoding, is a mechanism for encoding data in a Uniform Resource Identifier (URI). It converts unsafe characters (characters that are not allowed in a URL) into a format that is safe for transmission over the internet. These unsafe characters are typically replaced with a "%" followed by a two-digit hexadecimal representation of the character's ASCII code.

What is URL Decoding?

URL decoding is the reverse process of URL encoding. It takes a percent-encoded string and converts it back into its original form. This is necessary when receiving data that has been encoded for transmission.

Why Use URL Encoding/Decoding?

  • Safe URL Transmission: Ensures that special characters are correctly handled in URLs.
  • Data Integrity: Prevents data corruption during URL transmission.
  • Cross-Platform Compatibility: Enables consistent handling of URLs across different systems.

Advantages and Disadvantages

Feature URL Encoding URL Decoding
Purpose Makes URLs safe for transmission Restores original data from encoded URLs
Complexity Relatively simple Relatively simple
Security Increases security by preventing injection attacks No direct security impact
Readability Reduces readability of URLs Restores readability

Examples

  • Encoding: Input: "Hello World!" Output: `Hello%20World!`
  • Decoding: Input: `Hello%20World!` Output: "Hello World!"