What is URL encoding?

URL encoding (percent-encoding) converts special characters into a format that can be safely transmitted in URLs. For example, spaces become %20 or +.

What's the difference between encodeURI and encodeURIComponent?

encodeURI encodes a full URI preserving special URL characters like ://?#. encodeURIComponent encodes everything, making it safe for query parameter values.

When should I URL encode?

URL encode when passing special characters in query parameters, form data, or when building URLs programmatically to ensure they are valid.

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URL Encode/Decode

Encode and decode URLs and query strings online

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Input

Output

How It Works

Enter Text

Type or paste a URL or text to encode/decode

Choose Action

Click Encode or Decode to process your text

Copy Result

Copy the encoded or decoded result instantly

Frequently Asked Questions

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Last updated: Feb 27, 2026