Encode text into URL-safe format for use in web addresses, query parameters, and form data. Decode URL-encoded strings back to readable text — all in your browser, free, with nothing uploaded.
URLs can only contain a limited set of characters (letters, digits, and a few special characters like -, _, ., ~). When you need to include spaces, symbols, or non-ASCII characters in a URL, you must encode them using percent-encoding. For example, a space becomes %20, and & becomes %26.
URL encoding is essential for:
?q=hello%20world)application/x-www-form-urlencoded)This tool supports two encoding modes:
/, ?, #, &. Best for encoding individual query parameter values./, ?, #. Only encodes unsafe characters (spaces, quotes, non-ASCII). Best for encoding entire URLs.What is URL encoding?
URL encoding converts special characters into a percent-encoded format (%20 for space, %26 for &) so they can be safely transmitted in URLs.
Why do I need to encode URLs?
Without encoding, characters like &, ?, #, and spaces can break the URL structure or cause data loss.
What's the difference between URL component and full URL encoding?
Component encoding encodes all special characters for query parameters. Full URL encoding preserves URL structure characters like /, ?, #.
Is URL encoding private?
Yes — browser-based tools process everything locally. Your text never leaves your computer.