From fish's dotNET:
Convert .NET is an integrated, multi-purpose conversion and developer tool 6-in-1. It include features such as Google+Yahoo+Bing+Excite+Yandex 5-in-1 translator, C# to VB, and vice-versa using the ICSharpCode engine,Regular Expression tester, XML and JSON Browser, Base64 Encoding or Decoding and Encryption or Decryption.
What's new in this version:
Version 7.0.5606.1 contains minor updates, corrections and optimizations.