What programming language is FrostWire written in? Team FrostWire April 28, 2016 20:21 Updated FrostWire is written entirely in Java (using Swing), and we have specialized installers for most platforms. Related articles How to install FrostWire on Windows? Did you pay for FrostWire? Is FrostWire compatible with Windows 10? What is Dogecoin and where do I get it? What is seeding? Comments 0 comments Article is closed for comments.