Developer Tools › Data & Encoding
URL Encode / Decode
Encode and decode URLs with support for full URLs and query parameters. Handles Unicode, detects already-encoded strings, and validates encoding sequences.
Encodes everything
Encoding Modes Explained
Component Mode (encodeURIComponent): Encodes special characters including / ? : @ & = + $ #. Use this for query string parameters.
Full URL Mode (encodeURI): Preserves special characters that have meaning in a URL structure. Use this for full URLs.