NeonDB is a pioneering serverless PostgreSQL database designed for cloud-native environments, fundamentally characterized by its separation of compute and storage layers. Founded in 2021, it has rapidly grown to manage over 700,000 databases within three years, offering features like instant database branching (allowing writable copies in seconds), true scale-to-zero capabilities for significant cost savings on idle periods, and dynamic autoscaling of compute resources based on workload demands. Its architecture comprises Safekeepers for WAL durability, Pageservers for intelligent storage and WAL processing, and Cloud Object Storage for foundational persistence, all contributing to improved cold start times (down to ~500ms) and enhanced vector search performance for AI applications. While praised for developer experience and operational simplicity, some users note concerns regarding latency for ORM-heavy applications and managing connections with serverless functions. Recent major developments include its acquisition by Databricks for approximately $1 billion in May 2025, which signals its growing importance in the data ecosystem and its continued alignment with AI-driven applications and developer-centric trends.