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Apache Software Foundation · Data catalogs & formats

Language-independent columnar in-memory format and libraries that let DuckDB, Polars, pandas, Spark and databases exchange tables without copying

Apache-2.0Open sourceFreeLocalNov 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

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MinIO (AIStor)