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Alternatives

Products that do what ER Diagram does

Design database schemas online — free, no signup needed

  1. 1

    Database diagrams editor for teams

    2025

  2. 2OD

    Hey all! I released drawDB about a month ago and now it's open source. I hope you find it useful. If you want to check out the app you can go to https://drawdb.vercel.app/ . Thank you:)

    2024 · github.com

  3. 3CA

    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

  4. 4

    Free database diagrams designer for analysts & developers 🛠

    2018

  5. 5VD

    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

  6. 6
    DrawSQL246

    Better entity relationship diagrams for your database

    2018

  7. 7
    RelateDB140

    Offline-first database schema designer in your browser

    Jan 2026 · relatedb.com

  8. 8

    One year ago I open-sourced my very first 'real' project and shared it here. I was a college student in my senior year and desperately looking for a job. At the time of sharing it i couldn't even afford a domain and naively let someone buy the one i had my eyes on lol. It's been a hell of a year with this blowing up, me moving to another country, and switching 2 jobs. In a year we somehow managed to hit 26k stars, grow a 1000+ person discord community, and support 37 languages. I couldn't be more grateful for the community that helped this grow, but now i don't know what direction to take…

    2025 · drawdb.app

  9. 9

    DesignSQL — Online Database Diagram & Schema Design Tool

    Feb 2026 · designsql.cloud

  10. 10
    Design DB221

    A hand-curated database of the best freebies for designers.

    2018

  11. 11
    Bhava320

    Create and edit diagrams instantly with AI

    2025

  12. 121Y

    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

  13. 13

    Write SQL without knowing SQL

    2023 · supabase.com

  14. 14

    Free and Open Source ERD tool for all major relational DBs

    Jul 2026

  15. 15

    Collection of 200+ database diagram templates for developers

    2020

  16. 16

    Design ER diagrams instantly with AI

    Feb 2026 · er.tanaike.jp

  17. 17EE

    Introduction - Entity-Relationship Diagram Editor - The top priority of the project is to focus on user editing experience.

    2024 · github.com

  18. 18

    Drop a model file — SQL, pgModeler, Prisma, MySQL Workbench and a dozen other formats — and get an interactive diagram, shareable through a single link.

    8d ago · mcdview.dev

  19. 19

    Generate a 100% free database schema for your project

    2024

  20. 20

    The largest free self taught product design course

    2022

  21. 21PT

    2023 · databasediagram.com

  22. 22
    Outerbase298

    The interface for your database

    2023

  23. 23DG
  24. 24DA

    In the past I've used declarative diagram generation tools like Mermaid.js a lot for quickly drawing up things but for presentations or deliverables I find that I have to then move the generated diagrams over to a tool like Lucidchart which allows full control of the organization and customization. Therefore I am now working on this to combine the benefits of both into just one tool which can do both functions. The project is certainly in the early stages but if you find yourself making architecture diagrams I'd love to hear your thoughts on the idea or even a Github issue for a feature…

    Oct 2025 · github.com

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