Developer
URL Encoder/Decoder
Encode and decode URLs to handle special characters and spaces properly.
Why URL encoding still trips people up
URLs only allow a limited set of characters unescaped. Spaces, slashes inside query values, and non-English text must be percent-encoded. If you hand-build links for analytics, auth redirects, or search queries, a small encoding mistake can break the target server’s parsing.
Use the tool
How to use encode vs decode
Encode a string when you are placing user-generated text into a query parameter. Decode when you are reading a long encoded URL to understand its actual parameter values. If the output looks wrong, check whether the input was already partially encoded, which is a common double-encoding problem.
Scope
This is a string transform helper. It does not sign URLs, add authentication, or protect against open redirects—those are server-side and application design concerns.