URLs can only be sent over the Internet using the standard ASCII character-set. URL encoding replaces unsafe or reserved ASCII characters (like spaces, ampersands, or slashes) with a "%" followed by two hexadecimal digits (for example, a space becomes %20).

encodeURI is intended for complete URLs and does not encode protocol/path delimiters like :, /, or ?. encodeURIComponent encodes all special characters, making it ideal for individual query parameters where reserved characters must not break the overall URL structure.

According to HTML form submission standards (application/x-www-form-urlencoded), spaces in query strings are often converted to a plus symbol (+). In standard RFC 3986 URI encoding, spaces are represented strictly as %20. Both forms are supported and decoded seamlessly by modern web servers.

Completely safe. The parsing and encoding occurs strictly inside your browser window using native JavaScript URLSearchParams. No URL strings, private query parameters, or authorization tokens are ever transmitted across any network.

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Free URL Encoder & Decoder

Parsed URL Query Parameters

Frequently Asked Questions

Ready to Start?

Free URL Encoder & Decoder

Parsed URL Query Parameters

Frequently Asked Questions

What is URL Encoding (Percent-Encoding)?

What is the difference between encodeURI and encodeURIComponent?

Why are plus signs (+) sometimes used for spaces instead of %20?

Is this URL parsing safe for confidential API tokens?