From humble beginnings as a on-the-side project at 2006 Zed Attack Proxy went on to be a winner of the 2011 Toolsmith Tool. Now it is translated to Brazilian, Portuguese, Chinese, Danish, French, German, Greek, Indonesian, Japanese, Persian, Polish and Spanish. ZAP is a brilliant tool for pentesting. OWASP admits they are interested in translations into another languages (and in improving current translations also). If you want to get involved in this free project get in touch with OWASP.