Visualize database schemas with a single query

In plain words

ChartDB is a tool that generates entity-relationship diagrams from database schemas using a single query, designed for developers and data analysts. It includes AI-powered export functionality to assist with database migration tasks. The tool is available as a web application and open-source project.

written from the facts on this page · September 2026

From the sources

Database diagrams editor that allows you to visualize and design your DB with a single query. - chartdb/chartdb

• CA
  ChartDB Agent – Cursor for DB schema design2025 · app.chartdb.io · ▲130

  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 -…

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  ChartDB v22025 · chartdb.io · ▲229

  Database diagrams editor for teams

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  Online database diagram editor2024 · github.com · ▲311

  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:)

• PT
  Private, text to entity-relationship diagram tool2023 · databasediagram.com · ▲262

  Create ER diagrams, SQL schemas, and DBML models. No Signup required, Nothing to install. All diagrams are 100% private, secure and processed locally right in your web browser

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  DrawDB – open-source online database diagram editor (a retro)2025 · drawdb.app · ▲263

  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…

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  I made an online DBER diagram editor and SQL generator2024 · drawdb.vercel.app · ▲13

  Free online database schema design tool. Draw entity-relationship diagrams, generate SQL for PostgreSQL, MySQL, SQLite, MariaDB, SQL Server & Oracle, import/export DBML, and collaborate on data models in real time.

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  Hey there HN! We’re Joe and Stopa, and today we’re open sourcing InstantDB, a client-side database that makes it easy to build real-time and collaborative apps like Notion and Figma. Building modern apps these days involves a lot of schleps. For a basic CRUD app you need to spin up servers, wire up endpoints, integrate auth, add permissions, and then marshal data from the backend to the frontend and back again. If you want to deliver a buttery smooth user experience, you’ll need to add optimistic updates and rollbacks. We do these steps over and over for every feature we build, which can…

  Dev tools · 2024 · github.com