Dev tools · alternatives · 2026

24 alternatives to Relational SQL database (Open Source)

Secures data, manages personal data, and automates adm tasks

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Relational SQL database (Open Source) launched in 2020; newer entries below may have overtaken it.

1. 1
   Siodb▲5

   Database that secures your data + protects your data privacy

   2019 · its alternatives →

2. 2
   MindsDB▲235

   In-database machine learning

   2022 · its alternatives →

3. 3
   We open sourced our entire text-to-SQL product▲464

   Long story short: We (Dataherald) just open-sourced our entire codebase, including the core engine, the clients that interact with it and the backend application layer for authentication and RBAC. You can now use the full solution to build text-to-SQL into your product. The Problem: modern LLMs write syntactically correct SQL, but they struggle with real-world relational data. This is because real world data and schema is messy, natural language can often be ambiguous and LLMs are not trained on your specific dataset. Solution: The core NL-to-SQL engine in Dataherald is an LLM based agent…

   2024 · github.com · its alternatives →

4. 4
   Godb is a simple Go ORM for PostgreSQL, MySQL, SQLite and SQL Server▲205

   A Go SQL query builder and struct mapper. Contribute to samonzeweb/godb development by creating an account on GitHub.

   2016 · github.com · its alternatives →

5. 5
   Outerbase▲295

   The interface for your database

   2023 · its alternatives →

6. 6
   Metabase, an open-source business intelligence tool▲287

   Metabase grounds every answer in your semantic layer — your metrics and business logic — so you can inspect the query behind it.

   2015 · metabase.com · its alternatives →

7. 7
   Metabase▲313

   Open source business intelligence - Installs in 5 minutes

   2015 · metabase.com · its alternatives →

8. 8TA
   TerminusDB – An open source in-memory graph database▲231

   2020 · terminusdb.com · its alternatives →

9. 9
   I wrote a RDBMS (SQLite clone) from scratch in pure Python▲371

   I wrote a relational database management system (RDBMS) (sqlite clone) from scratch in pure Python.

   2023 · github.com · its alternatives →

10. 10
    Open Source PostgreSQL Studio▲407

    Powerful PostgreSQL tool is now open source for self-hosting

    2021 · supabase.com · its alternatives →

11. 11IB
    I built a MySQL storage engine which is InnoDB compatible▲106

    upscaledb - a blazingly fast embedded key-value store with analytical functions

    2016 · upscaledb.com · its alternatives →

12. 12
    RelateDB▲140

    Offline-first database schema designer in your browser

    Jan 2026 · relatedb.com · its alternatives →

13. 13
    DbGate – open-source, cross-platform SQL+noSQL database client▲198

    DGate is fast and easy-to-use database client and SQL editor for MySQL, PostgreSQL, SQL Server, MongoDB and more. For desktop and web, it's open-source.

    2021 · dbgate.org · its alternatives →

14. 14
    QuestDB▲194

    Fastest open source database for time-series and analytics

    2020 · questdb.com · its alternatives →

15. 15
    OSS Database▲142

    A crowdsourced database of open source alternatives

    2022 · its alternatives →

16. 16
    ScratchDB – Open-Source Snowflake on ClickHouse▲261

    Hello! For the past year I’ve been working on a fully-managed data warehouse built on Clickhouse. I built this because I was frustrated with how much work was required to run an OLAP database in prod: re-writing my app to do batch inserts, managing clusters and needing to look up special CREATE TABLE syntax every time I made a change. I found pricing for other warehouses confusing (what is a “credit” exactly?) and worried about getting capacity-planning wrong. I was previously building accounting software for firms with millions of transactions. I desperately needed to move from Postgres to…

    2023 · github.com · its alternatives →

17. 17
    DBeaver▲130

    A free and universal database tool

    2018 · dbeaver.io · its alternatives →

18. 18OD
    OSS Database, A crowdsourced database of Open Source alternatives▲56

    2022 · ossdatabase.com · its alternatives →

19. 19
    An experimental distributed SQL database from scratch in Go▲104

    LBADD: An experimental, distributed SQL database. Contribute to tomarrell/lbadd development by creating an account on GitHub.

    2019 · github.com · its alternatives →

20. 20GV
    Gun v0.1.0 – The Easiest Database Ever▲173

    2015 · gundb.io · its alternatives →

21. 21SA
    Sourcetable – AI Spreadsheet and Data Platform▲188

    Hi HN! I’m Eoin, founder of Sourcetable (https://sourcetable.com). Sourcetable is an AI-native spreadsheet that syncs with all your data. Users pair with an AI copilot that helps them do their spreadsheet work, as well as more database-centric analysis and SQL. Soucetable syncs with databases including Postgres, MySQL, and MongoDB, and over 100+ business applications including Stripe, Zendesk, Hubspot, Quickbooks and Google Analytics. That data is available in a spreadsheet, and any models you build automatically update in near-real-time as new data flows in. The core primitives…

    2024 · its alternatives →

22. 22
    TerminusDB▲81

    An open-source in-memory graph database

    2020 · its alternatives →

23. 23
    Simple but Powerful IDE for Databases▲89

    Start innovating your database productivity with SQLGate - Oracle, SQLServer, PostgreSQL, MySQL, MariaDB, DB2, and Tibero!

    2019 · sqlgate.com · its alternatives →

24. 24
    TablePlus for Windows▲149

    A native GUI tool for MySQL, PostgreSQL, SQL Server & more

    2018 · tableplus.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →