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Open Source ETL & Data Integration Tools using CSS

A curated collection of the best open source tools to extract, transform, and load data between systems. using CSS.

Open-source data integration for modern teams
  • Stars

    22,247
  • Last commit

    6 hours ago
  • License

    Elastic-2.0
Seamlessly sync data from any source to any destination with a flexible, extensible platform that grows with your data needs.

Open Source Alternative to:

Ultra-fast data transformation for AI with lineage
  • Stars

    11,725
  • Last commit

    8 hours ago
  • License

    Apache-2.0
Open-source ETL framework built in Rust for AI workloads. Features incremental processing, data lineage, and observability tools for semantic search and RAG applications.

Open Source Alternative to:

Centralize, transform, and stash your data
  • Stars

    14,966
  • Last commit

    11 hours ago
  • License

    Unknown
Logstash is a free and open server-side data processing pipeline that ingests data from multiple sources, transforms it, and sends it to your desired destination.

Open Source Alternative to:

Magical data pipeline tool for seamless transformations
  • Stars

    8,834
  • Last commit

    4 days ago
  • License

    Apache-2.0
Open-source data pipeline platform for effortless data integration, transformation, and orchestration using Python, SQL, and R.

Open Source Alternative to:

Open-source data integration for modern stacks
  • Stars

    5,108
  • Last commit

    10 hours ago
  • License

    MIT
Collect, transform, and sync data across your entire infrastructure with a flexible, code-based approach to data integration.

Open Source Alternative to:

Seamless data import for your applications
  • Stars

    294
  • Last commit

    2 months ago
  • License

    MIT
Open-source solution for effortless data importing, mapping, and validation in web applications
Connect APIs, databases, and streams without glue code
  • Stars

    360
  • Last commit

    4 months ago
  • License

    Unknown
Automated data integration platform that connects APIs, databases, and event streams using semantic schemas. Deploy secure integrations in minutes with Git-based workflows.

Open Source Alternative to: