Online Utility • Developer Utilities

URL Encoder & Decoder

Encode special characters into percent-encoded URL format or decode them back to standard text.

About This Tool

Standard RFC 3986 URL encoder and decoder for query strings, URI components, and special characters.

1 How to Use Step-by-Step

1. Enter a URL or query string. 2. Click URL Encode or URL Decode. 3. Copy the sanitized result.

Practical Examples

Input: 'https://example.com/search?q=ai tools & tips' Encoded: 'https%3A%2F%2Fexample.com%2Fsearch%3Fq%3Dai%20tools%20%26%20tips'

Common Use Cases

• Building query strings for web APIs • Sanitizing redirect parameters • Fixing broken links with unencoded characters

Common Pitfalls & Mistakes

• Encoding an entire URL instead of just the query parameter values

Frequently Asked Questions

What standard is used?

Standard JavaScript encodeURIComponent and decodeURIComponent with UTF-8 compliance.