Open-source 3D database visualizer
Schema3D is a free open-source 3D database schema visualizer for SQL, T-SQL, and Mermaid ER diagrams. Explore tables, columns, primary keys, foreign keys, and shareable schema views in your browser.
Open-source 3D database visualizer launched on February 17, 2026 with 3 votes, #3,486 of 16,627 launches that month and more than 50% of that year's launches.
What it does
Schema3D solves the 'ERD spaghetti' problem by treating schema visualization as a spatial navigation problem. Explore in 3D instead of scrolling flat diagrams, filter by custom categories to reveal complexity progressively, & share complete schemas via stateless URLs.
Does a similar job
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Visualize database schemas with a single query2024 · github.com · ▲227Hey 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 :)
Online database diagram editor2024 · github.com · ▲311Hey 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:)
- PTPrivate, 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

- CAChartDB 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 -…
Visualize Your Rails App to ER Diagram Automatically2018 · holistics.io · ▲104Learn how to use this simple free tool dbdiagram.io to visualize your Rails ERD diagram, made by Holistics
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