
In-process SQL OLAP database that queries files and cloud data directly
DuckDB is an embedded analytical database popular for local Parquet workloads. It offers excellent SQL performance but is not designed as a server for high-throughput ingestion or distributed production use like QuestDB.
Free
AI-native time-series data historian for industrial operations at 10x performance and 10% cost.

The Live Data Layer for Apps and AI Agents

Open-source distributed OLAP database for sub-second real-time analytics at petabyte scale