WEB SECURITY · DEVELOPER TOOL · UTF‑8
URL Encoder & Decoder
Convert special characters into web‑safe formats instantly. Perfect for SEO professionals and developers fixing broken links or handling sensitive query parameters.
Web Security Utility
URL Encoder / Decoder
Characters: 0
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100% Private & Secure: All encoding/decoding happens locally in your browser. No data is ever sent to any server — ideal for sensitive API keys, tokens, or private parameters.
How to Use This Tool
1
Select Mode
Choose "Encode URL" to convert special characters into percent‑encoded format, or "Decode URL" to revert encoded strings back to readable text.
2
Enter Your Text
Type or paste your URL or string into the input field. The tool automatically processes it as you type.
3
Copy & Use
Click "Copy" to send the result to your clipboard. Use the encoded URL in your web applications, APIs, or HTML documents.
Frequently Asked Questions
URLs can only be sent over the Internet using the ASCII character‑set. Encoding converts unsafe characters (spaces, symbols, non‑ASCII) into a format that browsers and search engines interpret correctly, preventing 404 errors and broken links.
Absolutely. All processing is done locally in your browser using JavaScript. No data is ever sent to our servers, making it ideal for developers handling sensitive API keys, tokens, or private parameters.
encodeURI preserves characters like : / ? # @ & = that have special meaning in a full URL. encodeURIComponent encodes everything except A‑Z a‑z 0‑9 - _ . ! ~ * ' ( ), making it suitable for query parameter values. This tool uses encodeURIComponent by default for maximum safety.Yes. The tool fully supports UTF‑8 and multi‑byte characters such as Chinese, Arabic, Urdu, and emojis. Special characters are correctly percent‑encoded for web transmission.