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Alternatives

Products that do what DUMMY DATABASE does

Dummy data generator for devs, analysts & QA testers

  1. 1

    Free private sample PostgreSQL databases

    2021

  2. 2DT

    I built DDL to Data after repeatedly pushing back on "just use production data and mask it" requests. Teams needed populated databases for testing, but pulling prod meant security reviews, PII scrubbing, and DevOps tickets. Hand-written seed scripts were the alternative slow, fragile, and out of sync the moment schemas changed. Paste your CREATE TABLE statements, get realistic test data back. It parses your schema, preserves foreign key relationships, and generates data that looks real, emails look like emails, timestamps are reasonable, uniqueness constraints are honored. No setup, no…

    Jan 2026

  3. 3

    Generate a 100% free database schema for your project

    2024

  4. 4IO
  5. 5
    Outerbase298

    The interface for your database

    2023

  6. 6GT

    2013 · databasetestdata.com

  7. 7

    Powerful PostgreSQL tool is now open source for self-hosting

    2021

  8. 8
    bit.io130

    All your data in one place

    2021

  9. 91Y

    I have spent large parts of the last 10+ years building an SQL Editor. The tool is targeted at data analysts, a lot of effort has gone into charting, visualizing and excel export. If this sounds useful to you, it's Free, please give it a try and let me know any feedback.

    2024 · timestored.com

  10. 10

    Database diagrams editor for teams

    2025

  11. 11VD

    Hey HN! We are Jonathan & Guy, and we are happy to share a project we’ve been working on. ChartDB is a tool to help developers and data analysts quickly visualize database schemas by generating ER diagrams with just one query. A unique feature of our product is AI-Powered export for easy migration. You can give it a try at https://chartdb.io and find the source code on GitHub. Next steps ---> More AI. We’d love feedback :)

    2024 · github.com

  12. 12

    Postgres, powered up

    2024

  13. 13DG
  14. 14CA

    Last year we launched ChartDB OSS (https://news.ycombinator.com/item?id=44972238) - an open-source tool that generates ER diagrams from your database (via query/sql/dbml) without needing direct DB access. Now we’re launching the ChartDB Agent. It helps you design databases from scratch or make schema changes with natural language. You can: - Generate schemas by simply describing them in plain English - Brainstorm new tables, columns, and relationships with AI - Iterate visually in a diagram (ERD) - Deterministically export SQL script Try it out here -…

    Oct 2025 · app.chartdb.io

  15. 15DL

    2014 · databaselabs.io

  16. 16TD
  17. 17
    DBngin133

    Free all-in-one database version management tool 🛠️

    2018

  18. 18

    Hey! I'm Andrei. I got frustrated by how people tend to build overcomplicated backend systems, being "motivated" by big tech case studies and popular books. So, I started exploring lean architecture, and building my digital garden of ideas, approaches and data that align with this direction. Here I want to present one of the tools – Sizing tool for PostgreSQL. I've benchmarked PostgreSQL on different EC2 instances and disks, with different initial data sets to see performance that these instances can give you. And I've built a tool to visualize this data, which I welcome you to explore. So,…

    Jul 2026 · postgres.saneengineer.com

  19. 19PA

    2024 · github.com

  20. 20
    soarSQL98

    The analytical SQL editor - powered by duckDB

    2025

  21. 21

    Free fake data generator — 120+ fields, 7 export formats

    Jul 2026 · fakedatabase.com

  22. 22

    A grid library for instant big data processing

    2022

  23. 23ST

    Hi HN — we've built a testing framework for Supabase that spins up fast, isolated Postgres databases for each test case. It’s designed to make RLS policies easy to validate with real database state, without global test fixtures or mock auth. Features: - Instant isolated Postgres DBs per test - Automatic rollback after each test - RLS-native testing with `.setContext()` for auth simulation - Flexible seeding (SQL, CSV, JSON, JS) - Works with Jest, Mocha, and any async test runner - CI-friendly (runs cleanly in GitHub Actions) We also published example projects and a free set of tutorials:…

    Nov 2025 · npmjs.com

  24. 24SD

    Hi HN, we're excited to share our open source tool with the community! We previously posted here with the tagline “real-time events for Postgres” [0]. But after feedback from early users and the community, we’ve shifted our focus to working on tooling for manual database changes. We've consistently heard teams describe challenges with the way manual data updates are handled. Seemingly every engineer we spoke with had examples of errant queries that ended up causing significant harm in production environments (data loss/service interruptions). We’ve seen a few different approaches to how…

    2023 · github.com

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