QuestDB

QuestDB is ranked #33 of 74 in database software on Freedom251, made by QuestDB (London and New York). It runs on API, Linux, macOS, Self-hosted, Web, Windows. There is a free plan. A free trial is offered.

QuestDB plans and pricing

All plans

QuestDB Open Source Free Apache 2.0 core · self-managed · single instance · community support questdb.com · 30 Sept 2026

QuestDB Enterprise Not published Production deployments · replication and failover · RBAC, TLS and SSO · tiered storage · dedicated support with SLAs questdb.com · 30 Sept 2026

Compared on database software

Free plan: Yes

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QuestDB

SQL support: Yes
Product: QuestDB is a time-series database for mission-critical environments where low latency matters.
Ingestion: QuestDB advertises ingestion speeds of 8M+ rows per second.
Querying: QuestDB provides a vectorized execution engine, standard SQL, and time-series extensions including SAMPLE BY, ASOF, and HORIZON JOIN.
Deployment: QuestDB Open Source is self-managed and is available as binaries, containers, and source code.
Data formats: QuestDB supports Parquet storage and PostgreSQL Wire Protocol compatibility with existing tools and drivers.
Integrations: QuestDB lists Grafana, Power BI, Apache Kafka, Telegraf, Redpanda, Apache Flink, Pandas, and Apache Spark among its integrations.
Enterprise security: QuestDB Enterprise offers TLS encryption, role-based access control, audit logs, and single sign-on through OAuth 2.0/OIDC.
Open source security limit: The Enterprise comparison says Open Source provides basic authentication over unencrypted transmission.
Availability: QuestDB Enterprise advertises replication, automatic failover, and a 99.9% uptime guarantee.
Storage: Enterprise supports hot storage plus Parquet and Iceberg tables on object storage, including Amazon S3, Azure Blob, and GCS.
Support: Enterprise includes dedicated access to QuestDB engineers and guaranteed response-time SLAs; Open Source has community support.
Trial: QuestDB offers a free Enterprise trial, but the page does not state its duration.
Compliance: QuestDB's site states that it is SOC 2 Type 2 compliant.
Price from: Free

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Where it ranks on Freedom251

Best Database Software in 2026#33 of 74
Best Time-Series Databases in 2026#4 of 36
Best OLAP Software in 2026#3 of 31
Best OLAP Databases in 2026#3 of 28
Best Columnar Databases in 2026#4 of 24

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Sources

questdb.com/about-us/· checked 22 Sept 2026
questdb.com/download/· checked 30 Sept 2026
questdb.com/enterprise/· checked 30 Sept 2026
questdb.com/docs/integrations/overview/· checked 30 Sept 2026
questdb.com· checked 23 Sept 2026