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QuestDB

Open-source time-series database offering massive ingestion throughput, millisecond queries, and SQL extensions, designed for optimal performance at any hardware scale.

Open Source Alternative to:

QuestDB delivers exceptional performance for time-series data management with features that set it apart:

Massive Ingestion Capability: Handles over 4 million rows per second per node, making it ideal for high-frequency data collection
SQL Compatibility: Offers powerful time-series extensions while maintaining familiar SQL syntax and PostgreSQL wire protocol
Hardware Efficiency: Performs effectively on both minimal hardware (like Raspberry Pi) and enterprise-grade servers
Built-in Features: Includes out-of-box support for deduplication, out-of-order indexing, and real-time aggregations
Integration Ready: Compatible with popular tools like Grafana, Pandas, Python, and various data streaming platforms

Used by major financial institutions and enterprises for real-time analytics, market data processing, and IoT applications.