Galaxy Modeler
Easy-to-use Designer
for GraphQL Schema Design
- All-in-One Data Toolkit Data modeling, import from files, scripts generation, documentation
- Cross Platform
Runs on Windows, macOS & Linux - Offline / Secure Your data never leaves your device
- Excellent ROI Pay once, use forever
Schema design tool for GraphQL
Galaxy Modeler is a schema design tool for visual GraphQL® data modeling.
The software allows you to draw schema for GraphQL and generate scripts.
You can also make diagrams by importing existing GraphQL schemas.
- Performance improvements
- Predefined symbols and graphics
- Support for data flow, flowchart, and other elements
with Galaxy Modeler?
Draw diagrams for GraphQL
Schema design features include visual definition of basic and advanced GraphQL structures. Visually design GraphQL schema, specify types, interfaces, enums, draw references among types and define GraphQL type and field specifics.
Enjoy fast and convenient data modeling for GraphQL
- Create new objects visually, add references and draw implements.
- Galaxy Modeler will add referenced fields to target types automatically.
- Changes are saved immediately and in case you need to revert changes, use UNDO.
Create documentation for GraphQL schema designs
When creating schema design for GraphQL, you can arrange objects in sub-diagrams. Add notes in HTML format, connect objects using lines with custom end point graphics or add pictures to your schema designs. You can also export diagrams to PDF files or create HTML reports.
Generate scripts
- Use Galaxy Modeler data modeling tool for GraphQL to automatically generate schema creation scripts.
- When your schema design for GraphQL is finished, click a button on the toolbar and immediately see code preview – formatted and with syntax highlighting.
- You can also easily create custom scripts, CSV files or even UI components - it can all be done with custom templates
Visualize existing GraphQL schema design
Import GraphQL structures from existing files or from URL and visualize specific GraphQL elements, see references and add notes or other logical information to your diagrams.
- Free 14 days trial
- No credit card required
One-Time Purchase
User-Based Perpetual Licenses
- Data Modeling & Schema Visualization
- Unlimited Projects, Unlimited Objects
- Import from Files
- Scripts Generation
- Export to PDF / PNG, Reports Generation
- Sub-diagrams
- Custom Script Generation
- Flowcharts, Data Flow Diagrams
- User-based Perpetual License
- 12 Months Updates Included
- License for Multiple Devices
- All Basic Edition Features
- Open File from URL
- Ideal for educators, teachers, students
What is a GraphQL schema design tool?
A GraphQL schema design tool is software that lets you visually create, document, and manage GraphQL schemas — types, interfaces, enums, queries, mutations, and subscriptions — without editing SDL files by hand. Galaxy Modeler lets you draw GraphQL schema diagrams, define type relationships visually, generate schema definition scripts, and export documentation, all from a desktop application.
Can Galaxy Modeler import existing GraphQL schemas?
Yes. Galaxy Modeler can import GraphQL schemas directly from existing SDL files or from a live URL. Once imported, your schema is visualized as a diagram showing all types, their fields, and the references between them. You can then annotate, reorganize, and document the schema or continue editing it visually.
Is Galaxy Modeler a free GraphQL schema design tool?
Galaxy Modeler offers a free 14-day trial with no credit card and no account required. After the trial, it uses a perpetual licensing model — a one-time purchase that lets you use the software forever. Optional annual renewals give access to major new versions. There is also an educational license available for teachers and students.
What GraphQL features does Galaxy Modeler support?
Galaxy Modeler supports the following GraphQL structures: object types, interfaces, unions, enums, input types, scalar types and basic support is available for queries and mutations. You can define field arguments, specify directives, draw implements and reference relationships between types, and organize complex schemas into sub-diagrams for clarity.
Does Galaxy Modeler work offline?
Yes. Galaxy Modeler is a desktop application for Windows, macOS, and Linux. It runs completely offline — no cloud sync, no account needed. Your schema designs, diagrams, and generated scripts are stored locally on your device. You can import from a URL when online, but all design work happens locally.