Harper

About Harper

Harper is an open-source Node.js performance platform that unifies database, cache, messaging, and application logic into a single in-memory runtime. It enables building high-performance distributed applications with global low latency and scalable architecture. The project is maintained by HarperDB Inc. and is available as open source, with documentation and community resources for deploying the fused stack across multiple environments, including edge and cloud-like deployments. The company is based in Denver, Colorado, and emphasizes fast, global app delivery and real-time data capabilities.