--- title: Ten years of ClickHouse in open source | daily.dev description: ClickHouse marks its 10th anniversary as an open source project, having been released on June 15, 2016. The post is a detailed origin story written by the... canonical: https://daily.dev/posts/ten-years-of-clickhouse-in-open-source-skfxnyfb2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Ten years of ClickHouse in open source | daily.dev og:description: ClickHouse marks its 10th anniversary as an open source project, having been released on June 15, 2016. The post is a detailed origin story written by the... og:url: https://daily.dev/posts/ten-years-of-clickhouse-in-open-source-skfxnyfb2 og:image: https://api.daily.dev/og/posts/SkfxNyfB2.png og:image:alt: Ten years of ClickHouse in open source og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Ten years of ClickHouse in open source **[ClickHouse](https://daily.dev/sources/clickhouse)** · 14 min read · 2 upvotes · 0 comments ## Summary ClickHouse marks its 10th anniversary as an open source project, having been released on June 15, 2016. The post is a detailed origin story written by the creator, covering the pre-open-source history starting from 2008-2009 prototypes (OLAPServer and Metrage) built to solve web analytics scaling problems at Yandex. It traces the architectural decisions that led to ClickHouse: combining column-oriented storage with a merge tree for real-time updates, building a custom SQL parser, adding LZ4 compression, MergeTree, and eventually ReplicatedMergeTree with ZooKeeper. The post also reflects on ClickHouse's philosophy of open development (Level 3 open source), its role as a learning resource for C++ and database internals, and encourages engineers to open-source their own work. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [What a difference 10 years of open source makes](https://daily.dev/posts/what-a-difference-10-years-of-open-source-makes-5trlytqlz) · ClickHouse · 2 upvotes · 0 comments - [Ten years of open source: a stained-glass view](https://daily.dev/posts/ten-years-of-open-source-a-stained-glass-view-pwigcxnlm) · ClickHouse · 0 upvotes · 0 comments - [Open House 2026 Day 2: 10 years of open source and what the ecosystem is building next](https://daily.dev/posts/open-house-2026-day-2-10-years-of-open-source-and-what-the-ecosystem-is-building-next-8z1qgbvua) · ClickHouse · 0 upvotes · 0 comments - [June 2026 newsletter](https://daily.dev/posts/june-2026-newsletter-4m4svdjad) · ClickHouse · 0 upvotes · 0 comments --- Tags: [#open-source](https://daily.dev/tags/open-source), [#backend](https://daily.dev/tags/backend), [#c++](https://daily.dev/tags/c++), [#clickhouse](https://daily.dev/tags/clickhouse) [View this post on daily.dev](https://daily.dev/posts/ten-years-of-clickhouse-in-open-source-skfxnyfb2) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Ten years of ClickHouse in open source","url":"https://daily.dev/posts/ten-years-of-clickhouse-in-open-source-skfxnyfb2","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/ten-years-of-clickhouse-in-open-source-skfxnyfb2"},"datePublished":"2026-06-15T15:22:34.968Z","dateModified":"2026-06-19T13:07:46.492Z","description":"ClickHouse marks its 10th anniversary as an open source project, having been released on June 15, 2016. 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