What is URL Encode/Decode?

URL Encode/Decode is a tool for converting text into a URL-safe form or decoding an encoded string back into readable text. It is useful for Japanese text, symbols, query strings, and encoded URLs.

You can switch between encode and decode modes, and the result updates automatically.

How to Use

1. Enter the text you want to convert.
2. Choose Encode or Decode.
3. Turn per-line conversion on if needed.
4. Review the converted result.

Main Settings

Conversion Mode

• Encode: converts text into a URL-safe form
• Decode: converts encoded text back into readable text

Convert Per Line

When enabled, each line is converted separately and line breaks are preserved. This is useful when processing multiple URLs or values at once.

Use Cases

• Creating query parameters with non-ASCII text
• Checking request URLs during API testing
• Reading encoded URLs more easily
• Converting multiple lines of text in one pass

Input and Output Example

Hello World

When encoded, this becomes:

Hello%20World

Things to Keep in Mind

• Spaces are encoded as %20
• Invalid encoded input can produce a conversion error in decode mode
• Characters such as ?, &, and = may also be encoded depending on the input