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Home/Categories/Databases & Storage/ClickHouse
icon of ClickHouse

ClickHouse

Open source alternative to Snowflake, Amazon Redshift and Google BigQuery

  • 50.5K stars
  • Apache-2.0
  • Active this week
  • Last commit 1 day ago

Last verified Oct 20, 2026

Query high-volume analytics data with an Apache-2.0 columnar database built for real-time OLAP, self-hosting, and SQL reporting.

Visit websiteGitHub50.5K stars1-click deploy on Hostinger
image of ClickHouse
TL;DR

ClickHouse is an Apache-licensed column-oriented database for real-time analytics, event data, and high-volume SQL reporting. It is a self-hostable alternative to BigQuery, Snowflake, or managed analytics stores when query speed and infrastructure control matter.

Read the full breakdownHide the full breakdownWho it is for, how it works, trade-offs, the quick start and the FAQ
who it's for

Who ClickHouse is for#

Product analytics teams with high event volume

Store clickstream, product, or usage events and query them with SQL at dashboard speed.

Skip if:

Your workload is small enough for PostgreSQL or your BI tool cache.

Observability and log analytics teams

Run fast aggregations over logs, metrics, traces, or security events without a fully hosted warehouse.

Skip if:

You need a managed warehouse with no database operations work.

the problem

The problem it solves#

Analytics workloads become expensive when every dashboard, event query, and retention decision runs through a metered warehouse. Teams with high-volume logs, metrics, product events, or user behavior data need fast analytical queries without giving up control over storage and deployment.

how ClickHouse solves it

How it solves it#

Column-oriented OLAP engine

ClickHouse stores data by column, which makes aggregation and filtering fast for event, log, and metrics workloads.

Real-time SQL analytics

The README describes ClickHouse as a database for generating analytical reports in real time, not a general row-store replacement.

Self-hosted or managed path

Teams can operate ClickHouse themselves or use ClickHouse Cloud when they want the creators to run it.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • High performance for event analyticsClickHouse is a strong fit for large append-heavy datasets where dashboards need fast aggregates over many rows.
  • Apache-licensed infrastructure controlThe Apache-2.0 license and self-hosted path make it practical for teams that need analytics close to private data.

Trade-offs

  • -Not a transactional app databaseClickHouse is not the right primary database for ordinary OLTP application writes.
  • -Cluster operations require database skillReplication, shards, storage, memory, and query tuning need planning once data volume grows.
versus alternatives

ClickHouse vs alternatives#

ClickHouse vs BigQuery and Snowflake

ClickHouse is better when real-time analytics performance, self-hosting, and cost control over high-volume event data matter. BigQuery and Snowflake are better when the team wants a managed warehouse, broad ecosystem integrations, and less database operations work. ClickHouse rewards teams willing to operate their analytics engine directly.

install · quick start

Quick start#

bash
Self-host ClickHouse with the official Docker image for a local server or evaluation instance.

```bash
docker pull clickhouse/clickhouse-server
docker run -d --name clickhouse-server -p 8123:8123 -p 9000:9000 clickhouse/clickhouse-server
```
tech stack · detected from GitHub

What it's built on#

Languages
CC++PythonRust
Databases
ClickHouse
Infrastructure
AWS
frequently asked

FAQ#

What is ClickHouse best for?

ClickHouse is best for analytical SQL over large columnar datasets, especially events, logs, metrics, and reporting tables.

Can ClickHouse replace PostgreSQL?

No, not for ordinary transactional app workloads. ClickHouse complements PostgreSQL when analytics queries become too heavy for a row-store database.

Is ClickHouse open source?

Yes. ClickHouse reports an Apache-2.0 license in GitHub metadata and can be self-hosted.

also worth a look

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Scalable Big Data management with high-performance analytics

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by category

Open source tools in these categories#

61

Databases & Storage

Immich, Supabase, Redis
104

Data & Analytics

Firecrawl, ragflow, Worldmonitor
105

Cloud & Hosting

dify, RuView, rtk
Hostinger

Run ClickHouse on your own server

Hostinger sets ClickHouse up as a one-click app on a VPS.

Deploy on Hostinger

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