Alternatives

Products that do what SlothDB does

Embedded analytical database engine built in C++

1. 1DU
   Duck-UI – Browser-Based SQL IDE for DuckDB▲213

   I built Duck-UI, a web-based SQL editor that runs DuckDB entirely in your browser via WebAssembly. No backend required. The Problem: Every time I needed to query csv, parquet, or even to play with SQL, I had to either: (a) spin up a Jupyter notebook (b) use the CLI (c) upload to a hosted service. Friction at every step (TOO MUCH to load a csv or even to test some sql (study)... The Solution: DuckDB's WASM runtime lets us run SQL analysis client-side. Load CSV/JSON/Parquet files from disk or URL, write SQL, get results instantly. Data stays on your machine. What It Does: SQL editor…

   Oct 2025 · demo.duckui.com

2. 2IO
   I open-sourced the in-memory PostgreSQL I built at work for E2E tests▲379

   2024 · github.com

3. 3CQ
   CSVFiddle – Query CSV files with DuckDB in the browser▲64

   2022 · csvfiddle.io

4. 4OS
   Open-source, browser-local data exploration using DuckDB-WASM and PRQL▲227

   Hey HN! We’ve built Pretzel, an open-source data exploration and visualization tool that runs fully in the browser and can handle large files (200 MB CSV on my 8gb MacBook air is snappy). It’s also reactive - so if, for example, you change a filter, all the data transform blocks after it re-evaluate automatically. You can try it here: https://pretzelai.github.io/ (static hosted webpage) or see a demo video here: https://www.youtube.com/watch?v=73wNEun_L7w You can play with the demo CSV that’s pre-loaded (GitHub data of text-editor adjacent projects) or upload…

   2024 · github.com

5. 5
   soarSQL▲98

   The analytical SQL editor - powered by duckDB

   2025

6. 6SO
   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

7. 7PA
   Postgres as a VectorDB GUI▲162

   2024 · github.com

8. 8EO
   EventQL – Open-source distributed SQL analytics database in C++11▲90

   2016 · github.com

9. 9
   Nabubit▲203

   Your database design copilot

   2024

10. 10RA
    Replicate App-Embedded DuckDBs into PostgreSQL with SyncLite OSS▲73

    2024 · github.com

11. 11
    bit.io▲130

    All your data in one place

    2021

12. 12YO
    Yobulk – Open-source CSV importer powered by GPT3▲233

    2023 · github.com

13. 13GI
    Godb is a simple Go ORM for PostgreSQL, MySQL, SQLite and SQL Server▲205

    2016 · github.com

14. 14
    QoreDB▲95

    The fast, open-source database client built with Rust

    Mar 2026 · qoredb.com

15. 15BA
    BedquiltDB – A Mongo-like JSON doc store built on Postgres▲145

    2016 · bedquiltdb.github.io

16. 16AB
    A benchmark for analytical databases (Snowflake, Druid, Redshift)▲137

    I created a web page to compare different analytical databases (both self-managed and services, open-source and proprietary) on a realistic dataset. It contains 20+ databases, each with installation and data loading scripts. And they can be compared to each other on a set of 43 queries, by data load time or by storage size. There are switches to select different types of databases for comparison - for example, only MySQL compatible or PostgreSQL compatible. If you play with the switches, many interesting details will be uncovered. Full description:…

    2022 · benchmark.clickhouse.com

17. 17DL
    Database Labs – Postgres as a Service▲46

    2014 · databaselabs.io

18. 18OO
    Objectiv – Open-source product analytics infrastructure▲88

    Hi! One of the creators here. Very proud to finally be able to show you what we've been working on for over a year now. Curious to hear your thoughts! Objectiv is open-source (APLv2) product analytics infrastructure. It's built around a generic but strict event taxonomy, open/common data- and infra tools (currently PG, snowplow, working on bigquery with more to come), and the analyses are done using our pandas-like, SQL speaking modeling library called Bach. As a result, we’re moving towards a vision wherein models can be shared openly, independent of product, platform[1] or data…

    2022 · objectiv.io

19. 19KB
    Kretes – Build full-stack applications in TypeScript and PostgreSQL▲81

    2020 · kretes.dev

20. 20SP
    SQL Polyglot▲53

    Try running a query anywhere from PostgreSQL to DuckDB without leaving your browser.

    2023 · codapi.org

21. 21SS
    Stackby – Spreadsheets, Databases and No-code APIs in a single platform▲92

    2021 · stackby.com

22. 22MS
    MyDuck Server – Supercharge MySQL and Postgres Analytics with DuckDB▲32

    Hello HN! We're excited to announce MyDuck Server, an open-source project that seamlessly integrates the analytical power of DuckDB with your existing MySQL & Postgres databases. *Backstory* Currently, there are no fully satisfactory open-source OLAP solutions for MySQL & Postgres. In the MySQL ecosystem, HeatWave offers close integration, but it's a proprietary, commercial product from Oracle. The Postgres community has seen promising DuckDB-based extensions emerge, including the official pg_duckdb. However, extensions can introduce isolation concerns in mission-critical environments.…

    2024 · github.com

23. 23LD
    Lance – Deep Learning with DuckDB and Arrow▲65

    2022 · github.com

24. 24SO
    StackGres: open-source Postgres-aaS on Kubernetes with 120 Extensions▲54

    2021 · stackgres.io

Ranked by how close each launch is in meaning, then by votes. Refine with a description →