AAApache Software Foundation · ETL/ELT & orchestration
Python workflow orchestrator for scheduling and monitoring DAGs of tasks, with hundreds of provider packages and managed offerings from several clouds
Apache-2.0Open sourceFreeSelf-hostedNov 2, 2026 ASApache 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 PPolars (Ritchie Vink and contributors) · DataFrames & array computing
In-depth entry Rust-based DataFrame library with Python, Rust, Node and R bindings offering lazy query optimization, multithreading and Arrow-native memory
MITOpen sourceFreeLocalNov 2, 2026