Open source parquet projects
Every project in the registry tagged parquet, ranked by real GitHub adoption.
High-performance time-series database for massive data scale
Create full-fledged APIs for slowly moving datasets without writing a single line of code.
OLake - Fastest Databases, Kafka & S3 Replication to Apache Iceberg with Table optimization (Called OLake Fusion). ⚡ Efficient, quick and scalable data ingestio
Frequently asked questions
How many open source parquet projects are there?
This registry tracks 3 projects tagged parquet, with 22,213 GitHub stars between them. The most-adopted is QuestDB at 17,326 stars.
Are these parquet projects free to use?
Yes — 3 of the 3 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 parquet 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 parquet projects still maintained?
2 of the 3 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.