Jitsu is an open-source Segment alternative
Apache DevLake is an open-source dev data platform
The Common Core Ontology Repository
Upserts, Deletes And Incremental Processing on Big Data
A lightweight opinionated ETL framework, halfway between plain scripts
A data integration framework
An optimization toolbox for probabilistic Boolean networks
Pentaho Data Integration ( ETL ) a.k.a Kettle
Data Vault loading automation using Pentaho Data Integration.
Schema Matching Solution for Data Integration