Simple, fast, extensible JSON encoder/decoder for Python simplejson is a simple, fast, complete, correct and extensible JSON <http://json.org> encoder and decoder. It is pure Python code with no dependencies. The encoder may be subclassed to provide serialization in any kind of situation, without any special support by the objects to be serialized (somewhat like pickle). The decoder can handle incoming JSON strings of any specified encoding (UTF-8 by default).