URL Encoder & Decoder

When you need URL encoding

URLs can only contain a limited set of characters. Anything else — spaces, accents, special symbols — must be percent-encoded. %20 for a space, %26 for &, etc.

• Building query strings programmatically — query parameter values must be encoded.
• Sending data via GET requests — to safely pass special characters.
• WhatsApp share links — message text needs to be encoded.
• OAuth redirects — callback URLs containing other URLs need encoding.
• Debugging — paste an ugly encoded URL into the decoder to see what it really says.

encodeURI vs encodeURIComponent

This tool uses encodeURIComponent — the safe default for query parameters. It encodes everything non-reserved including /, ?, =, &. If you need to encode a whole URL while preserving its structure (slashes, etc.), use encodeURI — but be aware it leaves & and = alone, which can be wrong inside query strings.