Open source etl projects
Every project in the registry tagged etl, ranked by real GitHub adoption.
Declarative workflow orchestration for data, AI, and infra
Collect, transform, and route logs and metrics in one tool
Open-source data integration for modern teams
An orchestration platform for the development, production, and observation of data assets.
Ultra-fast data transformation for AI with lineage
Magical data pipeline tool for seamless transformations
Zero-ETL, infinite possibilities. Live query APIs, code & more with SQL. No DB required.
Flink CDC is a streaming data integration tool
pandas on AWS - Easy integration with Athena, Glue, Redshift, Timestream, Neptune, OpenSearch, QuickSight, Chime, CloudWatchLogs, DynamoDB, EMR, SecretManager,
A system for agentic LLM-powered data processing and ETL
Scalable and efficient data transformation framework - backwards compatible with dbt.
Fast, Simple and a cost effective tool to replicate data from Postgres to Data Warehouses, Queues and Storage
Apache DevLake is an open-source dev data platform to ingest, analyze, and visualize the fragmented data from DevOps tools, extracting insights for engineering
Real-time stream processing made simple and affordable
A lightweight stream processing library for Go
🔥🔥🔥 Open source Reverse ETL - alternative to hightouch and census.
Database Reporting Tool and Tasks (.Net)
A Python stream processing engine modeled after Yahoo! Pipes
The open document intelligence platform for builders and hackers - DMS for the agentic world
Hop Orchestration Platform
Actively maintained fork of Alibaba DataX — a fast, versatile ETL tool for RDBMS/NoSQL data transfer
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,
Conduit streams data between data stores. Kafka Connect replacement. No JVM required.
Connect APIs, databases, and streams without glue code
Related tags
Frequently asked questions
How many open source etl projects are there?
This registry tracks 24 projects tagged etl, with 157,723 GitHub stars between them. The most-adopted is Kestra at 28,146 stars.
Are these etl projects free to use?
Yes — 22 of the 24 carry an explicit open-source licence across 4 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 etl 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 etl projects still maintained?
23 of the 24 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.