Visualize Your Rails App to ER Diagram Automatically
Learn how to use this simple free tool dbdiagram.io to visualize your Rails ERD diagram, made by Holistics
Visualize Your Rails App to ER Diagram Automatically launched on October 29, 2018 with 104 votes, #361 of 2,827 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 7 years on.
In plain words
Dbdiagram.io is a free tool that generates entity-relationship diagrams from Rails database schemas. It helps Rails developers quickly visualize how their database tables and relationships are structured. The tool reads Rails' schema.rb file and automatically creates visual ERD diagrams, making it easier to understand database architecture at a glance without manual diagramming.
written from the facts on this page · September 2026
From the sources
Learn how to use this simple free tool dbdiagram.io to visualize your Rails ERD diagram, made by Holistics Rails comes with a schema.rb file that contains a clear definition of your database tables and how they're linked together. But what if you want to generate an entity-relationship diagram (ERD) of your Rails app to quickly get a sense of how they look? Since we launched dbdiagram.io , a free and simple tool to draw entity relationship diagram 4 weeks back, we've been getting tons of feedback. Among those, a lot of people are asking if we support integrations with Rails, Django, or Laravel. So today I'm excited to share that we've fulfilled one of the first steps: we now support Rails!…from holistics.io
Does a similar job
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- 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
dbdiagram.io by Holistics2019 · dbdiagram.io · ▲9A free simple tool to draw ER diagrams by just writing code
ERDiagram2021 · erdiagram.nestorrente.com · ▲68Generate the SQL script and classes code of your ER model
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:)
Draw Database Diagrams Using Code (DSL) – Dbdiagram.io2018 · dbdiagram.io · ▲20Quick and simple free tool to help you draw your database relationship diagrams and flow quickly using simple DSL language.
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