Luna Modeler
Professional Data Modeling Tool
for DBAs & Developers

FREE 14 days trial. No card required.

More than just static ER diagrams Start data modeling from scratch or reverse-engineer databases
Stop schema drift Compare dev, staging & production and generate synchronisation SQL
No hand-written DDL Forward engineer validated SQL scripts from your data models
Documentation that stays current Generate docs with annotations, dependencies, sub-diagrams
Works fully offline Your schemas stay on your device, nothing uploaded to the cloud, ever
One-time purchase Pay once, use forever.
No subscription, no lock-in

Screenshot of Luna Modeler showing an ER diagram and database design canvas — Screenshot of Luna Modeler used as a database design tool, showing an entity relationship diagram canvas with tables, relationships, and properties panel.

The Database Professional's
End-to-End Workflow

Most database teams scatter their schema work across text editors, wiki pages, migration scripts, and outdated diagrams — none of it in sync. Luna Modeler brings your entire database lifecycle into a single desktop application: from first entity to production SQL, from reverse engineering a legacy system to documenting it for the next developer.

Trusted by database architects, senior developers, and DBAs in 85+ countries who need a reliable, professional tool that respects their workflow.

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Why professionals
choose Luna Modeler

No mandatory cloud sync — data stays on your machine
Works with on-premise and cloud databases (Azure, AWS, Supabase)
Conceptual, logical & physical model supported
Schema comparison & synchronisation scripts
Interactive HTML reports your team can actually read
Custom script templates for any output format
SSH / SSL / TLS tunnel support (Professional edition)

Featured in Apple's MacBook Pro launch.
Used by professionals in 85+ countries.

Understand any database — instantly

Connect to a live database and reverse engineer it into a complete ER diagram automatically. No manual diagramming. No reading raw DDL. The full picture in front of you in minutes.

Keep your team aligned — automatically

Generate interactive HTML documentation and PDF exports directly from your data model. When the schema changes, regenerate in one click — no doc maintenance, no stale wikis.

Deploy schema changes — without writing SQL

Forward engineering turns your visual data model into deployment-ready DDL SQL for your exact database platform. Platform-specific syntax, validated output.

Catch schema drift — before it hits production

Compare your data model against any connected database, see every diff highlighted, and generate a targeted synchronisation SQL script. Keep your environments in sync.

SQL script generated from an ER diagram in Luna Modeler database design tool — Screenshot of Luna Modeler generating SQL DDL scripts from an ER diagram, with platform-specific syntax for the connected database.

Platform-Specific SQL for Every Database in Your Stack

Luna Modeler doesn't generate generic SQL that breaks at deployment. Every forward-engineered script matches your database's exact dialect.

PostgreSQL — PostGIS types, Supabase, AWS RDS for PostgreSQL
Oracle Database — on-premise, AWS RDS Oracle, Oracle Cloud
SQL Server — Azure SQL Database, Entra ID auth
MySQL and MariaDB — open-source stacks
SQLite — embedded, file-based, and mobile application databases

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Your Schemas Never Leave Your Machine

Luna Modeler is a desktop application. Your database credentials, ER diagrams, schema files, and generated SQL are stored on your own device only. No account required to use it. No schemas uploaded to our servers.

Your intellectual property stays in your hands.

Download free trial — no account needed