Open source elt projects
Every project in the registry tagged elt, ranked by real GitHub adoption.
Open-source data integration for modern teams
dbt enables data analysts and engineers to transform their data using the same practices that software engineers use to build applications.
SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.
Magical data pipeline tool for seamless transformations
Sync and transform data from any source to any destination
Flink CDC is a streaming data integration tool
A system for agentic LLM-powered data processing and ETL
Scalable and efficient data transformation framework - backwards compatible with dbt.
OLake - Fastest Databases, Kafka & S3 Replication to Apache Iceberg with Table optimization (Called OLake Fusion). ⚡ Efficient, quick and scalable data ingestio
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,
Related tags
Frequently asked questions
How many open source elt projects are there?
This registry tracks 10 projects tagged elt, with 77,554 GitHub stars between them. The most-adopted is Airbyte at 22,082 stars.
Are these elt projects free to use?
Yes — 9 of the 10 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which elt project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these elt projects still maintained?
10 of the 10 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.