JXCore is based on node codebase, while Napa.js is written from scratch with multi-threading consideration at its core. We evaluated JXCore before starting Napa

JXCore is based on node codebase, while Napa.js is written from scratch with multi-threading consideration at its core. We evaluated JXCore before starting Napa.js, but found easier to re-architecture to get performance and memory sharing right.