# Url decode > Supported in: Batch, Faster, Streaming Decodes a percent-encoded string to plain text. **Expression categories:** Cast, String ## Declared arguments * **Expression:** The expression to url decode.
*Expression\* **Output type:** *String* ## Examples ### Example 1: Base case **Argument values:** * **Expression:** `string` | string | **Output** | | ----- | ----- | | raw\_string\_with\_no\_special\_characters | raw\_string\_with\_no\_special\_characters | | test%2Fapi%3Fstring%3D3 | test/api?string=3 | *** ### Example 2: Null case **Argument values:** * **Expression:** *null* **Output:** *null* ***