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About QuestDB
What is QuestDB?
QuestDB is an open-source, low-latency time-series database designed for high-ingestion and fast-query workloads. It combines a SQL-first interface with specialized time-series primitives like SAMPLE BY, materialized views, and order-book arrays. The database supports multi-tier storage (hot/cold with Parquet and Iceberg), enabling unified queries across real-time and historical data.
Who is it for?
QuestDB is built for developers and enterprises in capital markets, aerospace, and energy—teams that need sub-millisecond query latency on billions of data points. It is ideal for trading floors, mission control systems, and AI agent workloads. It is not designed for general-purpose transactional workloads.
Real use cases
At B3 (Latin America's largest exchange), QuestDB processes every trade for its Central Securities Depository. BTG Pactual uses it for order-book replay and pricing algorithm analysis. Airbus runs real-time applications involving billions of data points daily. The database ingests 16M+ rows/second, queries in under 10ms, and offers 60% lower TCO versus legacy systems.
Key features
- Ultra-low latency query — Sub-10ms query performance on time-series data, even at petabyte scale.
- High ingestion throughput — Ingest over 16 million rows per second per instance.
- Multi-tier storage engine — Auto-tier hot data to cold Parquet/object storage; unified SQL across tiers.
- Open data lake formats — Native support for Parquet, Iceberg, and standard SQL; no vendor lock-in.
- Time-series SQL primitives — SAMPLE BY for downsampling, materialized views for precomputed OHLCV candles, 2D arrays for order-book analytics.
- Distributed and HA — Horizontal scaling, replication, auto-failover, and multi-AZ resilience.
- Enterprise security — SSO (OAuth 2.0/OIDC), RBAC, audit logs, TLS encryption.
SaaSpartout Score
7.5
/10
Editorial score from our review methodology — not user ratings.
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QuestDB Pricing
QuestDB pricing: Starts on request (Enterprise); free open-source plan available. Billing model: Free.
Open Source (Community)
Free. Includes all core database features, single-node deployment, and community support. Ideal for development, testing, and small-scale production.
Enterprise (BYOC/Cloud/On-Premises)
Custom pricing, contact sales. Includes high availability (99.9% uptime SLA), auto-failover, tiered object storage, SSO/RBAC/audit logs, SLA-backed creator support, and elastic scale. Designed for mission-critical production deployments.
Free trial available via the open-source version; contact sales for Enterprise evaluation.
Frequently asked questions
Is QuestDB free to use?
Yes, QuestDB has a free open-source (Community) version available for download. The Enterprise edition with advanced features like HA, SSO, and Tier 1 support requires a paid license.
How much does QuestDB cost?
QuestDB Enterprise pricing is custom and available on request. The open-source Community edition is free. There is no fixed monthly price listed.
What is QuestDB used for?
QuestDB is used for real-time analytics in capital markets (trading floors, order-book replay), aerospace (mission control), AI agent data pipelines, and IoT time-series workloads.
How does QuestDB compare to InfluxDB?
QuestDB claims 10x faster ingest than the next-fastest database and offers native SQL with time-series primitives. It emphasizes open formats (Parquet, Iceberg) and no vendor lock-in, whereas InfluxDB uses its own query language (Flux) and storage engine.
Does QuestDB support SQL?
Yes, QuestDB uses standard SQL. It also provides specialized time-series SQL extensions like SAMPLE BY for downsampling and materialized views for precomputed aggregates.
What are the main limitations of QuestDB?
QuestDB is purpose-built for time-series and real-time analytics. It is not designed for general-purpose OLTP or transactional workloads. The open-source version runs single-node; high-availability requires the paid Enterprise edition.
