Open source delta-lake projects
Every project in the registry tagged delta-lake, ranked by real GitHub adoption.
Apache Doris is a real-time analytics and hybrid search database for AI agents.
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRock
An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs
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Frequently asked questions
How many open source delta-lake projects are there?
This registry tracks 4 projects tagged delta-lake, with 50,305 GitHub stars between them. The most-adopted is doris at 15,945 stars.
Are these delta-lake projects free to use?
Yes — 4 of the 4 carry an explicit open-source licence across 1 distinct licence, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which delta-lake 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 delta-lake projects still maintained?
4 of the 4 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.