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Open Source Relational Databases (SQL) using Java

A curated collection of the best open source database systems based on the relational model (SQL). using Java.

Neon Postgres

Serverless Postgres for modern applications

  • Stars

    23,286

  • Last commit

    2 months ago

  • License

    Apache-2.0
Cloud-native, auto-scaling Postgres with instant branching, bottomless storage, and pay-per-use pricing

Open Source Alternative to:

Supabase

Turso

SQLite-compatible database for scalable multi-tenant applications

  • Stars

    17,302

  • Last commit

    14 days ago

  • License

    MIT
Turso provides a simple developer experience with SQLite compatibility, allowing you to build and scale multi-tenant applications with unlimited databases.

Open Source Alternative to:

Supabase

CrateDB

Scalable SQL database for real-time analytics

  • Stars

    4,449

  • Last commit

    17 hours ago

  • License

    Apache-2.0
Distributed SQL database designed for high-speed ingestion and complex queries on massive datasets, ideal for IoT and time-series data.

Open Source Alternative to:

Snowflake
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