Luna Modeler vs Vertabelo

Vertabelo is a browser-based data modeling tool. You open it in a browser, your schemas are stored on Vertabelo's servers, and you pay a recurring subscription to access them. For teams that prioritize browser-based collaboration and cloud storage, that model works.

For teams that prioritize data privacy, offline capability, or a one-time purchase rather than an ongoing subscription, it does not. This page explains why those teams choose Luna Modeler instead.

The core difference: where your schemas live

With Vertabelo, your database schemas are stored on a third-party server. You are trusting Vertabelo's infrastructure with the structure of your data — table names, field definitions, relationships, business logic encoded in your model. For many teams, especially those working in regulated industries or with sensitive data, this is not an acceptable arrangement regardless of what the privacy policy says.

Luna Modeler is a desktop application. Your schemas are stored as local files on your machine. They never leave your environment unless you explicitly export or share them. There is no server in the path, no cloud account, and no third party with access to your model.

This is not a privacy setting — it is the architecture. The full technical details are documented here.

Subscription vs. perpetual license

Vertabelo requires a subscription. When you stop paying... Luna Modeler is sold under a perpetual license — you pay once. Your models are local files that belong to you, not to a cloud service.

Optional annual updates are available if you want new features, but they are genuinely optional. The version you purchased continues to work regardless of whether you renew. There is no scenario where your access to your own data models is contingent on maintaining a subscription with a vendor.

What Luna Modeler offers

• Visual ER diagram creation for Oracle, PostgreSQL, SQL Server, MySQL, MariaDB, and SQLite
• Forward engineering with platform-specific SQL DDL
• Reverse engineering from live databases
• ALTER script generation for schema synchronization
• Schema conversion between database platforms
• Interactive HTML documentation reports
• Works fully offline — no internet connection required for core functionality
• Runs on Windows, macOS, and Linux

The honest case for Luna Modeler

Vertabelo is a well-designed browser tool and makes sense for teams whose workflow is browser-first and who are comfortable with cloud storage of their schemas. Luna Modeler does not try to replicate that browser-based collaboration model.

What Luna Modeler does: gives you a professional, fully capable data modeling tool that runs on your machine, stores your data locally, requires no subscription, and works without an internet connection. If any of those properties matter to you or your organization, Luna Modeler is the more appropriate tool.

Try Luna Modeler free for 14 days

Disclaimer: Ideamerit s.r.o. is not affiliated with, endorsed by, or sponsored by Vertabelo®. The mention of Vertabelo is for comparison and informational purposes only.