URL Encode / Decode
Encode or decode URL components safely in your browser.
URL text
Encode or decode URL components locally.
Free URL encoder and decoder
Convert spaces, symbols, and Unicode text to URL-safe encoded strings, or decode percent-encoded values back to readable text.
How to Use URL Encode / Decode (Step-by-Step)
Paste the URL text or component.
Choose Encode or Decode.
Copy the converted result.
Applications
Common Use Cases
- Encode spaces, symbols, and Unicode text for URLs.
- Decode query strings or copied URL fragments for easier reading.
- Prepare safe values for API calls and links.
Privacy Guarantee
Zero Server Uploads
Unlike traditional online converters that upload your confidential documents to external cloud servers, MultiToolX executes computations in your browser runtime via HTML5 Canvas, Web Crypto, and WebAssembly.
Your data never leaves your device and cannot be viewed, stored, or harvested by anyone.
URL Encoding and Percent-Encoding Explained for Developers
A developer guide on URL percent-encoding (RFC 3986). Learn the difference between encodeURI and encodeURIComponent with live testing.
FAQ
Frequently Asked Questions
Should I encode a full URL or only part of it?
Usually encode only the component value, such as a query parameter, not the entire URL with :// and / characters.
Why does decoding fail?
The input may contain malformed percent-encoding, such as an incomplete % sequence.
Is this the same as Base64?
No. URL encoding escapes characters for URLs; Base64 represents binary/text data in a different alphabet.
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