Open source data-warehouse projects
Every project in the registry tagged data-warehouse, ranked by real GitHub adoption.
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data load tool (dlt) is an open source Python library that makes data loading easy 🛠️
Data observability for modern data teams
🔥🔥🔥 Open source Reverse ETL - alternative to hightouch and census.
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Open source SQL Query Assistant service for Databases/Warehouses
Useful scripts, udfs, views, and other utilities for migration and data warehouse operations in BigQuery.
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Open, SQL-native time-series database for telemetry you need to keep. 34M+ records/sec ingestion, 8M+ rows/sec queries. InfluxDB Line Protocol and Telegraf comp
DomainMOD is an open source application written in PHP & MySQL used to manage your domains and other internet assets in a central location. DomainMOD also inclu
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Frequently asked questions
How many open source data-warehouse projects are there?
This registry tracks 10 projects tagged data-warehouse, with 56,977 GitHub stars between them. The most-adopted is PostHog at 40,600 stars.
Are these data-warehouse projects free to use?
Yes — 9 of the 10 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 data-warehouse 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 data-warehouse projects still maintained?
9 of the 10 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.