The leading
database for AI

Powering agentic systems with millisecond queries at petabyte scale.

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Langfuse is now part of ClickHouse. Discover the leading open-source platform for LLM observability, evaluations, and prompt management. Ideal for building, monitoring, and optimizing AI applications at scale.

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Use cases

Built for every modern data challenge

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Real-time analytics

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Observability

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Data warehousing

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ML & GenAI

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Build real-time data products that scale

Sony, Lyft, Cisco, GitLab and many more choose ClickHouse Cloud for its scale, efficiency, and ease of use.

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“ClickHouse played an instrumental role in helping us develop and ship Claude 4.”

Anthropic

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“ClickHouse checked every box. We have availability, we have speed, we have durability. We have everything we could want.”

Tesla

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“We needed something to slice and dice real-time data, like rides and driver hours across cities and regions where Lyft runs. Using ClickHouse resulted into a lot of performance benefits for us with huge cost savings for the org.”

Lyft

Why ClickHouse?

ClickHouse is the fastest and most resource efficient real-time data warehouse and open-source database.

Blazing fast

Ultimate query performance that your
mission-critical and time-sensitive
applications can depend on.

Developer friendly

Built to ensure that even the most
sophisticated data analysis can be done
intuitively, using simple SQL.

Cost effective

Best-in-class compression ratios
that reduce storage and accelerate
performance.

Get started in a few minutes with a free cloud trial ->->

Seamlessly integrate with your stack

Choose from our growing ecosystem of integrations for data ingestion, visualization, language clients, and more.

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Why is ClickHouse so fast?

Column-oriented databases are better suited to OLAP scenarios. They are at least 100x faster in processing most queries. ClickHouse uses all available system resources to their full potential to process each analytical query as fast as possible.

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Column-oriented databases

In column-oriented databases, like ClickHouse, data is stored in columns, with values from the same columns stored together.

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Row-oriented databases

In row-oriented databases, data is stored in rows, with all the values related to a row physically stored next to each other.

Read more in the docs ->->
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Deploy your way

Unlike traditional closed-source databases, ClickHouse runs in every environment, whether it’s on your machine or in the cloud.

ClickHouse Cloud

The best way to use ClickHouse. Available on AWS, GCP, Azure and, on their respective marketplaces.

Get started

ClickHouse

Spin up a database server with open-source ClickHouse. Always free.

Download ClickHouse

ClickHouse Local

Run fast queries on local files (CSV, TSV, Parquet, and many more) without a server.

Download ClickHouse Local

Join the 100k+ developers using ClickHouse today

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78.1k+PRs
802+Releases
48.3k+Stars

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FAQs

Wherever you need us, we’re there. We love to engage in thoughtful conversation with the ClickHouse community and are always on-hand to answer your questions.

Ask us anything ->->

01

ClickHouse is faster than most traditional data warehouses and databases and is most often used when real-time queries on large datasets are necessary at an affordable cost. However, developers also often use ClickHouse on top of their CDWH or OLTP databases to act as a “speed layer” within their existing infrastructure.

02

OLAP stands for “online analytical processing” which contrasts from OLTP, or “online transaction processing.” As the name suggests, OLAP databases perform significantly better compared to OLTP databases for analytical workloads common with large datasets.

03

In order to easily process large amounts of data, ClickHouse uses highly optimized compression techniques and vectorized query execution to maximize CPU efficiency.

04

ClickHouse supports connectors to many clients and drivers, including common BI and data analysis tools. Please see this page for a complete list of supported integrations.

05

Self-managed ClickHouse is dependent on the cost of your compute and data storage resources, as well as headcount necessary to manage the ClickHouse deployment. For the most affordable way to run ClickHouse, use ClickHouse Cloud, which starts at $50/month.

Start using ClickHouse in seconds

Install ClickHouse for MacOS, Linux, and FreeBSD.

 curl https://clickhouse.com/ | sh

Or install for Windows, Docker or see other install options. Or try without installing in our playground.

Watch this getting started video to learn more about ClickHouse.