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748 projects · 100 relicensed

Apache Arrow license, foundation and stars

Query and processing engines · Apache 2.0 (open source) · Apache Software Foundation · 17,277 stars

GitHub

Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

License history

LICENSE file

Apache 2.0 No license change recorded since the repository was created in 2016.

Latest release

apache-arrow-25.0.1 published Aug 10, 2026

More in query and processing engines

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ProjectStars
pathwayPython ETL framework for stream processing, real-time analytics, LLM pipelines, and RAG.Custom or mixed (see the LICENSE file)62k
pandasFlexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more.BSD 3-Clause50.3k
Apache SparkApache Spark - A unified analytics engine for large-scale data processing.ApacheApache 2.044.4k
DuckDBDuckDB is a high-performance analytical database system.DuckDB FoundationMIT42.7k
PolarsExtremely fast Query Engine for DataFrames, written in Rust.PolarsMIT40.3k
prestoThe official home of the Presto distributed SQL query engine for big data.Apache 2.016.8k
Apache HadoopA query and processing engine by apache, written in Java.Apache 2.015.7k
TrinoOfficial repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (.StarburstApache 2.013.5k
About and history
Repository
apache/arrow · created Feb 17, 2016
Website
arrow.apache.org
Language
C++
Foundation
Apache Software Foundation, top-level project · source
GitHub detects
Apache-2.0
Stars per week
20 (GitHub weekly snapshots)

Weekly snapshots

Week ofStars
Nov 2, 202617,277
Oct 26, 202617,245
Oct 19, 202617,213
Oct 5, 202617,239
Sep 21, 202617,156

Changes

Stars per weekNov 7, 2026

Gains about 20 stars a week, up from 18.

Stars per weekOct 29, 2026

Gains about 18 stars a week, up from 14.

Stars per weekOct 19, 2026

Gains about 14 stars a week, down from 42.

Stars per weekOct 10, 2026

Gains about 42 stars a week, up from 26.

TrackedSep 24, 2026

Now tracked, from apache/arrow on GitHub.