URL Encoder / Decoder

About This URL Encoder/Decoder

Encode and decode URLs and URI components using JavaScript's native encoding functions. All processing happens in your browser — nothing is sent to any server.

Encoding Modes

• encodeURIComponent — Encodes all special characters. Best for query string values and path segments.
• encodeURI — Preserves URL structure characters (://?#@). Best for encoding full URLs.
• Base64 URL — URL-safe Base64 encoding (RFC 4648). Uses - and _ instead of + and /.

Common Use Cases

• Encode query parameters with special characters
• Decode URLs from logs or analytics tools
• Debug percent-encoded strings
• Prepare strings for use in URLs

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