OLake[open source] Fastest database to Iceberg data replication tool

In plain words

OLake is an open-source tool that replicates database data into data lakehouses, currently supporting MongoDB with MySQL and PostgreSQL in development. Built for data engineers, it eliminates the need to manage Debezium or Kafka separately. The tool focuses on speed and simplicity as its core offering for teams moving data from databases to lakehouse environments.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hi HN, Today we’re excited to introduce OLake (github.com/datazip-inc/olake, 130+ and growing fast), an open-source tool built to help you replicate Database (MongoDB, for now, mysql and postgres under development) data into Data Lakehouse at faster speed without any hassle of managing Debezium or kafka (at…

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