--- /dev/null
+``convert_encoding``
+====================
+
+.. versionadded:: 1.4
+ The ``convert_encoding`` filter was added in Twig 1.4.
+
+The ``convert_encoding`` filter converts a string from one encoding to
+another. The first argument is the expected output charset and the second one
+is the input charset:
+
+.. code-block:: jinja
+
+ {{ data|convert_encoding('UTF-8', 'iso-2022-jp') }}
+
+.. note::
+
+ This filter relies on the `iconv`_ or `mbstring`_ extension, so one of
+ them must be installed. In case both are installed, `mbstring`_ is used by
+ default (Twig before 1.8.1 uses `iconv`_ by default).
+
+Arguments
+---------
+
+* ``to``: The output charset
+* ``from``: The input charset
+
+.. _`iconv`: http://php.net/iconv
+.. _`mbstring`: http://php.net/mbstring