Top APACHE GitHub Repositories & Tools (2026)

Apache Airflow - A platform to programmatically author, schedule, and monitor workflows

Apache Iggy: Hyper-Efficient Message Streaming at Laser Speed

Apache Iceberg

Drop-in Apache Spark replacement written in Rust, unifying batch processing, stream processing, and compute-intensive AI workloads.

Apache Superset is a Data Visualization and Data Exploration Platform

Apache Fineract

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Apache ZooKeeper

Event streaming platform for agentic AI. Continuously ingest, transform, and serve event streams in real time, at scale.

Open Lakehouse Format for Multimodal AI. Convert from Parquet in 2 lines of code for 100x faster random access, vector index, and data versioning. Compatible with Pandas, DuckDB, Polars, Pyarrow, and PyTorch with more integrations coming..

Apache Hive

Apache Maka (Incubating) is a high-performance agent workspace that keeps a complete record of everything it did.

Apache Maven Daemon

Java rate limiting library based on token-bucket algorithm.

Apache ActiveMQ

Apache Lucene.NET is an open-source full-text search library written in C#, ported from the Apache Lucene project.

Apache TinkerPop - a graph computing framework

Apache Atlas - Open Metadata Management and Governance capabilities across the Hadoop platform and beyond

.NET for Apache® Spark™ makes Apache Spark™ easily accessible to .NET developers.

OLake - Fastest Databases, Kafka & S3 Replication to Apache Iceberg with Table optimization (Called OLake Fusion). ⚡ Efficient, quick and scalable data ingestion for real-time analytics. Supported sources : Postgres, MongoDB, MySQL, Oracle, MSSql, DB2, Kafka, S3.