Data Transformation GitHub Repositories (2026) · Open Source Tools

A high-performance observability data pipeline.

Apache Camel is an open source integration framework with 350+ connectors. Write routes in Java, YAML, or XML. Run on Spring Boot, Quarkus, or standalone. Apache License 2.0.

Open-source ETL/ELT you deploy on your own servers or cloud. Built on DuckDB: no-code/low-code visual pipelines or SQL, 385 components, dbt, CDC, data quality, reverse ETL, lineage, MCP for AI agents. No vendor cloud, no per-row billing.

Build data pipelines with SQL and Python, ingest data from different sources, add quality checks, and build end-to-end flows.

Apache Camel Quarkus

The ledger for agentic data work.

Runs Camel on Spring Boot and provides starters for Camel components

Publisher is the open-source analytics engine for Malloy. It lets you define data models once — and use them everywhere.