🔗 URLエンコーダー / デコーダー

Free Online URL Encoder Decoder — Encode Special Characters for URLs

Our URL encoder/decoder converts text to percent-encoded format suitable for use in URLs and query parameters, or decodes percent-encoded strings back to readable text. URL encoding (percent encoding) replaces unsafe ASCII characters with a '%' followed by two hexadecimal digits, making it an essential tool for web development, API testing, and data processing.

When building web applications, query parameters containing spaces, special characters, or non-ASCII characters must be URL-encoded to be properly transmitted. Our tool handles all character sets including UTF-8, making it ideal for international URLs with Chinese, Japanese, Arabic, or Cyrillic characters. すべてローカル処理 and private.

Key Features

• Encode to URL format — Convert text to percent-encoded URL-safe format
• Decode URL-encoded strings — Convert %xx sequences back to readable characters
• UTF-8 / Unicode support — Works with all languages and special characters
• Real-time processing — Results update as you type
• 100% private browser processing — Your data never leaves your device

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