ClickHouse

Data & analytics

Free open-source softwareEditorial overview
A CLOSER LOOK

What is ClickHouse?

ClickHouse is a column-oriented database for analytical queries over large event and measurement datasets. Its open-source server emphasizes aggregation and real-time analysis, while managed cloud services are offered separately for teams that prefer outsourced operations.

Column-oriented storage

Analytical SQL

Fast aggregations

Data ingestion

Is it a good fit?

Best suited to

High-volume event and analytical reporting workloads

Before you choose

Different design trade-offs from transactional databases. Clusters require operational expertise.

Editorial assessment based on the provider’s published information. Our method

Know what you're signing up for.

The Apache 2.0 software is available without a license subscription and includes Column-oriented storage and Analytical SQL. You provide the server, administration, backups, and any external services; managed hosting is not included.

Self-hosted software is free; server infrastructure and administration cost extra.

Check current official pricing

The useful parts. The trade-offs.

Why consider it

Well suited to event-style analytics

Column storage supports efficient aggregation

What to keep in mind

Different design trade-offs from transactional databases

Clusters require operational expertise

How to use it well

Model data around the queries and filters users actually need, then test partitioning and ordering on a realistic sample. Measure ingestion and aggregation together before scaling the deployment. Plan retention and backup procedures explicitly, and avoid assuming that an analytical database behaves like a row-oriented transactional system for frequent single-record updates.

This is best suited to high-volume event and analytical reporting workloads. Before committing a larger project, account for these trade-offs: different design trade-offs from transactional databases; clusters require operational expertise.

A few things you might be wondering.

Is ClickHouse free?

The Apache 2.0 software is available without a license subscription and includes Column-oriented storage and Analytical SQL. You provide the server, administration, backups, and any external services; managed hosting is not included.

Is ClickHouse Cloud part of the free server?

No. The open-source server and managed cloud service are separate offerings.

Is ClickHouse aimed primarily at transactional applications?

Its main strength is analytical processing and aggregation.

Where can I check the latest prices?

Use the provider link on this page. Billing period, location, team size, promotions, taxes, and optional extras may affect the amount you pay.

How should I compare this tool with alternatives?

Choose tools for the same task, then compare their feature limits, platform support, and total cost for your team. The Compare button helps you keep a shortlist.

Are the user reviews moderated?

Yes. New reviews are submitted for moderation. We show published user reviews separately from the editorial overview and never assign a default user rating.

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