See complex diagrams clearly Small-team pricing
Enterprise-grade modeling No cloud uploads.
Your work stays yours.
Luna Modeler
Professional Data Modeling Tool
for relational databases
- 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
- 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
Design Databases Visually -
and Keep Them That Way
Luna Modeler turns database design into a picture your whole team can read: draw ER diagrams, generate deployment-ready SQL, document what you build, and keep the model in step with the real database — all on your own machine, no cloud required.
choose Luna Modeler
- Works with Oracle, SQL Server, PostgreSQL, MySQL, MariaDB & SQLite
- Enterprise-grade modeling at a fraction of the typical price
- Keeps your live database and your data model in sync
- Draws ER diagrams and generates deployment-ready SQL
- Turns any diagram into interactive documentation
- Headless CLI, git-friendly folder format (Ultimate edition)
Complex Diagrams, Instantly Readable
Once a model grows past a few dozen tables, finding what connects to what becomes guesswork. Context Lens ends that: select any table, view, or object and it opens a focused view of everything linked to it — relationships, dependencies, every line leading elsewhere — no more scrolling a 200-table diagram to answer "what does this touch?"
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
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.
No credit card. No account. Just download and start designing.
- Free 14-day trial
- No credit card required
- Data modeling, ER diagrams
- Unlimited projects, unlimited tables
- Reverse & forward engineering
- SQL scripts generation
- Custom fields & customization
- Templates for custom output
- Assets & graphics
- All basic edition features
- Advanced reverse engineering
- Secure SSH/TLS connections
- Sub-diagrams
- Interactive reports
- Synchronization features
- Model conversion
- Multiple instances
- All professional edition features
- Navigator for easy schema exploration
- Folder based format for team collaboration
- Command line interface
- CLI configuration wizard
Also working with
MongoDB or GraphQL?
Luna Modeler covers relational databases. If your stack also reaches into MongoDB or GraphQL, we built a dedicated tool for each — same one-time pricing, same offline-first design.
Data Modeling Tool
for MongoDB & noSQL
- Visual MongoDB schema design
- Reverse engineer existing MongoDB databases
- Generate validation & creation scripts
- Mongoose ODM support
Schema Design Tool
for GraphQL
- Visual GraphQL schema design
- Import from files or live URLs
- Generate schema definition scripts
- Export to PDF documentation