Apache Spark
Apache Software Foundation · Analytical engines & OLAP
Distributed data processing engine with DataFrame and SQL APIs in Python, Scala, Java and R, plus structured streaming and MLlib
Apache-2.0Open sourceFreeLocalSelf-hostedNov 2, 2026
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ClickHouse
ClickHouse, Inc. · Analytical engines & OLAP
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
Dask
Dask developers (open-source community) · Distributed & parallel computing
Python library for parallel and distributed computing that scales pandas, NumPy and custom task graphs from a laptop to a cluster
BSD-3-ClauseOpen sourceFreeLocalSelf-hostedNov 2, 2026
DuckDB
DuckDB Foundation / DuckDB Labs · Analytical engines & OLAP
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
MinIO (AIStor)
MinIO, Inc. · Backup & recovery
S3-compatible object storage server; the AGPL community edition was archived in April 2026 and succeeded by MinIO's AIStor Free and AIStor Enterprise editions
MixedFreeEnterpriseSelf-hostedRenamedBroken
Python
Python Software Foundation · Programming languages & runtimes
General-purpose, dynamically typed programming language with a large standard library and the dominant ecosystem for data science and machine learning
PSF-2.0Open sourceFreeLocalSelf-hostedBroken
Trino
Trino Software Foundation · Analytical engines & OLAP
Distributed SQL query engine that federates queries across data lakes, warehouses and databases through connectors, formerly PrestoSQL
Apache-2.0Open sourceFreeSelf-hostedNov 2, 2026
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