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Analytical engines & OLAP remove filterself-hosted remove filterdeep remove filterClear all

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ClickHouse

ClickHouse, Inc. · Analytical engines & OLAP

In-depth entry

Open-source columnar OLAP database server for fast aggregations over billions of rows, with MergeTree storage, SQL and a managed ClickHouse Cloud

Apache-2.0Open sourceFreeLocalSelf-hostedNov 2, 2026

dbt

dbt Labs (Fivetran + dbt Labs) · ETL/ELT & orchestration

In-depth entry

SQL-first transformation framework that compiles templated models, tests and documentation into warehouse tables; open-source Core plus a commercial platform

Apache-2.0Open sourceFreemiumLocalSelf-hostedNov 2, 2026

DuckDB

DuckDB Foundation / DuckDB Labs · Analytical engines & OLAP

In-depth entry

In-process analytical SQL database that queries Parquet, CSV and Arrow data directly from Python, R, Node or the CLI

MITOpen sourceFreeLocalSelf-hostedNov 2, 2026

Elasticsearch

Elastic N.V. · Vector databases

In-depth entry

Distributed search and analytics engine on Apache Lucene with full-text, aggregations, vector search and ES|QL; triple-licensed AGPL, SSPL and Elastic License

AGPL-3.0-only OR SSPL-1.0 OR Elastic-2.0Open sourceFreeSelf-hostedNov 2, 2026

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