Awesome
yang-eclipse
An Eclipse Plug-in for YANG using a YANG language server and a YANG diagram based on sprotty.
Install it
YANG for Eclipse is available from the Eclipse Marketplace. Just drag this button to your running Eclipse
Build It Yourself
Requirements: Java 8, node 8, yarn 1.0.2
git clone https://github.com/theia-ide/yang-eclipse.git
cd yang-eclipse/diagram
yarn
cd ../yang-eclipse
mvn clean install