QuestDB
Real-time analytics on time series and event data
- Status
- Generally available
- Last checked
- Checked · Oct 16, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
QuestDB is a relational column-oriented database designed for real-time analytics on time series and event data, offering high performance and scalability.
QuestDB stands out as a high-performance, column-oriented database optimized for real-time analytics on time series and event data.
When it fits — and when it doesn’t
A good fit for
Teams needing real-time analytics on time series data
Projects that require efficient SQL query performance with real-time updates
Look elsewhere if
Applications requiring complex graph database operations
Use cases where row-oriented databases are more suitable due to frequent write operations
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited language support beyond Java
Primary development and integration are centered around Java, with limited official SDKs for other languages.
- 02
Complex setup for production environments
Setting up QuestDB for high availability and disaster recovery requires significant configuration and understanding of underlying components.
- 03
Performance degradation with complex queries
When dealing with highly complex SQL queries involving multiple joins or large datasets, performance can suffer significantly compared to simpler operations.
- 04
Small community and limited third-party integrations
The ecosystem around QuestDB is not as rich as more established databases like PostgreSQL or MySQL, limiting the availability of plugins and community support.
What it does well
Real-time analytics on time series and event data
Column-oriented storage for efficient query performance
Supports SQL queries with real-time updates
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up QuestDB
Setup steps, common gotchas and what to check after 30 days.
Get the badge
A small badge for QuestDB’s README or site: its name, “Tracked on AI Navigator”, and the availability status and check month from this page. It updates as the catalog does.
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