Custom Translator is a feature of the Microsoft Translator service, which allows translation companies, app developers and language service providers to build custom neural machine translation (NMT) systems. Custom translation systems, which require no programming skills, are integrated into existing applications, workflows and websites and on any device, via the Microsoft Translator Text API through standard REST technology. Custom Translator supports more than three dozen languages and corresponds directly to the languages available for NMT. Translation systems built with Custom Translator are available through Microsoft Translator Text API V3, which is cloud-based, secure, high-performance, and highly scalable.