High-performance open-source time-series database with native Parquet and Apache Iceberg support and multi-tier storage for AI-ready workloads.
QuestDB is an open-source time-series database engineered for ultra-low latency ingestion and SQL analytics across real-time and historical data in one engine. It uses tiered storage — hot WAL writes, real-time columnar SQL, and cold Parquet/Apache Iceberg object storage — keeping data portable and queryable by AI agents via standard SQL. Claimed 10x faster ingestion than next-fastest competitors. Used in capital markets, aerospace, energy, crypto, and robotics. QuestDB Enterprise adds HA, multi-AZ resilience, distributed architecture, and 24/7 support. QuestDB is a product of QuestDB.