Databases (Core)

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.

  1. 01

    Limited language support beyond Java

    Primary development and integration are centered around Java, with limited official SDKs for other languages.

  2. 02

    Complex setup for production environments

    Setting up QuestDB for high availability and disaster recovery requires significant configuration and understanding of underlying components.

  3. 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.

  4. 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.

Open the setup guide →
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QuestDB — tracked on AI Navigator

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